Doxycycline - Chlamydia Treatment

Doxycycline 100 mg Capsule for Chlamydia Treatment Buy Online
  • Doxycycline 100 mg Capsule for Chlamydia Treatment Buy Online

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Doxycycline - Chlamydia Treatment

  • Medication features

    Doxycycline is clinically proven and highly effective treatment for chlamydia. You'll start feeling better in a few days, but complete the full course of medicine.

    • 100% effective to treat Chlamydia
    • Take 1 capsule, twice a day, for 7 days
    • Oral treatment
    • Cheapest Price Guarantee
    • Next Day Delivery Available

    Registered UK Pharmacy Number 1039428


NOTE: After selecting this product, you will need to complete a short assessment, so we can make sure this medication is suitable for you.

About Doxycycline for chlamydia

Key Factor
  • Proven and effective treatment for chlamydia.
  • For most infections, you'll start feeling better in a few days, but complete the full course of medicine.
  • Doxycycline works more slowly for rosacea. A doctor can assess progress after about 4 weeks.
  • Common side effects include headaches, nausea, and increased sun sensitivity.
  • Avoid alcohol while taking Doxycycline for it to work effectively.
  • Rarely, Doxycycline may cause thrush. Consult your doctor or pharmacist if it happens.


Doxycycline is an antibiotic, effective treatment for sexually transmitted infections (STIs) like chlamydia, gonorrhea and syphilis.

It also used to treat other bacterial infections (chest and dental infections) in humans, like respiratory and urinary tract infections, skin and eye infections. It stops bacteria from growing in the body.

You take it by mouth, with or without food, as directed by your doctor. It's important to finish the full course, even if you feel better. Discuss any side effects with your doctor.

Besides infections, Doxycycline is prescribed for conditions like acne and specific types of malaria prevention. It comes in different forms (tablets, capsules, oral suspensions) and is usually taken orally, with or without food, as directed by a healthcare provider.

Note: Doxycycline is available by prescription in various forms, including capsules, tablets, and dispersible tablets that dissolve in water.

What is Doxycycline used for?

Doxycycline is used to treat a broad range of infections caused by bacteriaand certain parasites: It is commonly prescribed to treat:

  • Sexually transmitted diseases like chlamydia, syphilis and gonorrhea.
  • Respiratory tract infections
  • Urinary tract infections
  • Skin infections
  • Eye infections

It can also be prescribed for conditions such as acne, COPD and certain types of malaria prevention if you're travelling abroad.

How does Doxycycline work for chlamydia treatment?

When used correctly, Doxycycline is an effective and proven treatment for bacterial infections like Chlamydia in 100% of cases. Doxycycline is a type of antibiotic called tetracycline.

It works by blocking the bacteria causing your infection from making essential proteins. Without these proteins, the bacteria can't survive or multiply, By preventing this process, Doxycycline effectively kills the bacteria responsible for your infection.

How long does Doxycycline take to work for chlamydia?

Doxycycline typically starts working quickly, and you may begin to feel better within a few days if you have symptoms. However, it usually takes around 7 days for the infection to completely clear up.

It's important to complete the full course of Doxycycline as prescribed, even if you start feeling better or your symptoms improve. This ensures that the infection is fully cleared and reduces the risk of it coming back or becoming resistant to the treatment.

How long does it take for chlamydia to go away after taking Doxycycline?

It typically takes around 7 days for chlamydia to completely clear after finishing the full Doxycycline treatment course. You can resume sexual activity the day after completing treatment, unless your sexual partner is still in treatment.

It's advisable to undergo chlamydia retesting every 3 to 6 months if you switch sexual partners, as this may increase the risk of reinfection.

How effective is Doxycycline?

In clinical studies, Doxycycline has demonstrated remarkable effectiveness, with a reported success rate of up to 100% in treating chlamydia.

To maximize its efficacy, it's crucial to adhere to a daily dosing regimen and abstain from sexual activity while taking the medication.

How do you know Doxycycline is working?

  • If your symptoms persist or worsen while on doxycycline, it's advisable to consult your doctor.
  • If you are experiencing symptoms, you should begin to notice improvement within 3 days of starting the treatment.
  • If you do not have any symptoms, you may not perceive any noticeable changes while the medication is actively combating the infection.

How long does Doxycycline stay in your Body?

Doxycycline takes around 5 days to completely leave your body after you take it. Doxycycline has a half-life of 16 to 22 hours, which is how long it takes for the levels of Doxycycline to fall by 50%. It takes around 4 to 5 half-lives for a drug to be completely cleared from your system.

How to prevent Chlamydia spread?

To prevent further spread of chlamydia, follow these steps:

  • No Sex During Treatment:
    Avoid sex while on Doxycycline treatment to avoid passing the infection.
    Treat Both Partners Together:
    If you have chlamydia, make sure your partners also get treated together to prevent reinfection.
    Wait for a Negative Test:
    Tests may take 3-5 weeks to show negative results after successful treatment.
    Retest If Under 25:
    If you're under 25, get retested 3 months after Doxycycline treatment.
    Consult Before Retreatment:
    Don't repeat Doxycycline treatment within 3 months without talking to your doctor. They may suggest additional tests, treatment, or advice on avoiding future infections.

    These steps help stop chlamydia from spreading and ensure proper treatment.

Can I buy Doxycycline over the counter or get on the NHS?

No, It is not available over the counter, but you can get Doxycycline through the NHS by consulting your GP or visiting a local sexual health clinic.

How can I buy Doxycycline online in UK?

You can buy Doxycycline online from our UK registered pharmacy. Fill out an assessment form to check if the treatment is right for you. After placing your order, our pharmacy team will prepare and send your medication to the address you've provided.


Doxycycline is an  antibiotic medication that is normally the first line treatment for chlamydia. Azithromycin and Doxycycline are equally effective in treating chlamydia.

Recommended as first line treatment due to the decreased chance of bacterial resistance. It should be taken twice daily for 7 days, the course should be completed regardless of whether your symptoms disappear or not. This is to reduce the risk of antibiotic resistance.

NameMr Suhail Jamil
RoleSuperintendent Pharmacist
GPhc Number2069518

Doxycycline 120mg Capsules Summary

Type of MedicationTetracycline antibiotics
Form3 Oral form- tablet,capsule, and a suspension.
Dosage for Infection (18–64 years)Take 100mg of Doxycycline twice daily for 7 days.
Dosage for Malaria Prevention (18–64 years)Take 100 mg every day. Begin 1 to 2 days before going to a malaria area and continue for 4 weeks after leaving.
Mechanism of ActionAn antibiotic that works by inhibiting the growth and spread of bacteria in the body.
Treatment Success Ratio100%in Chlamydia Treatment
Side EffectsCommon side effects include headaches, nausea, and increased sun sensitivity.
Storing Room Temperaturebetween 69°F and 77°F (20°C and 25°C)
Per Pack14 Capsules
Price in UKFrom £17.49

 Doxycycline Price Table

1 Week (100mg)14 Capsules£17.49
2 Weeks (100mg)28 Capsules£34.98

Doxycycline Patient Information Leaflet

SUMMARY OF Doxycycline 100mg Capsules CHARACTERISTICS


Before taking Doxycycline for Chlamydia, talk to your doctor if You have:
  • Suspected syphilis.
  • A history of diarrhea when taking antibiotics.
  • Porphyria, a rare blood disorder.
  • Systemic lupus erythematosus (SLE).
  • Myasthenia gravis, which causes muscle weakness.
  • Myasthenia gravis, which causes muscle weakness.
  • If you have Liver or kidney problems.

Discuss these conditions with your doctor for safe use of doxycycline.

How to take Doxycycline for Chlamydia:

Doxycycline 100mg capsules should be taken twice daily for a duration of 7 days to treat chlamydia. Space your two doses evenly throughout the day. You can take your capsules with a glass of water, with or without food, but it's important to remain in an upright position, such as sitting or standing. Continue taking Doxycycline until you complete your treatment, even if you start feeling better.

When to take Doxycycline:

Doxycycline is prescribed twice daily for chlamydia. Ensure you evenly space these two doses throughout the day, taking one capsule in the morning and another in the evening.


How much Doxycycline to take:
  • You should take 100mg of Doxycycline twice daily for 7 days. If you are unsure, refer to your prescription or check the medicine packaging.
Duration of Doxycycline treatment for Chlamydia:
  • Your doctor will prescribe Doxycycline for a 7-day course. Be sure to complete the full treatment course as prescribed.

For rosacea or gum infections (40mg/day):
  • Take it at least 1 hour before eating.
For other infections (100mg or more/day
  • You can take it with or without food, but it's less likely to upset your stomach if you take it with a meal.
For malaria prevention:
  • If you're taking Doxycycline to prevent malaria, start taking it 1 or 2 days before going to a malaria-prone area.
    Keep taking it for 4 weeks after leaving the area.
    Confirm with your doctor or pharmacist that Doxycycline is the right medicine for malaria prevention in the country you're traveling to.

General Tips:

Always take Doxycycline while you're sitting, standing, or walking - not lying down.
After taking it, wait for at least 30 minutes before lying down.
If you need to take it twice a day, do so in the morning and before bedtime.
These clear steps should help you take Doxycycline correctly and get the best results while minimizing any potential side effects. Always follow your doctor's guidance.


  • You must finish the full course of treatment.
  • Do not have sex for 7 days after treatment is complete.
  • Do not crush or chew the tablet


Doxycycline Warnings

You should avoid sexual contact whilst taking Doxycycline and for 7 days after, this is to ensure that the infection is completely gone.

Doxycycline is not suitable for everyone. It may interact with certain conditions
or medications, making it unsafe or less effective. You should avoid taking Doxycycline if you:

Do not take Doxycycline and tell your doctor, if you:

• have taken Doxycycline or any other antibiotic before and suffered an allergic reaction (e.g. rash, itching, swelling of the face, fainting and breathing problems)
• are allergic to any of the other ingredients in Doxycycline Capsules
• are pregnant or trying to become pregnant are breast-feeding

Doxycycline Contraindications:

If any of these situations apply to you, consult your doctor.

  • You expect to be exposed to strong sunlight or ultraviolet light, like in a sunbed.
  • You've been diagnosed with systemic lupus erythematosus (SLE).
  • You experience diarrhea or usually have it when taking antibiotics.
  • You suspect you have syphilis.
  • You have porphyria, a rare blood disorder.
  • You have myasthenia gravis, a condition causing muscle weakness.
  • You have liver or kidney issues.

Alcohol and Doxycycline:

  • Avoid alcohol while taking Doxycycline because it can reduce the medicine's effectiveness.
  • If you're dependent on alcohol, be cautious as Doxycycline might increase the risk of liver damage.

Visual Disturbances:

  • If you experience visual disturbances like blurred vision while on doxycycline, do not drive or operate machinery.

Discussing these conditions with your doctor is important to ensure the safe and effective use of Doxycycline for chlamydia treatment.

Medications that Can Interact with Doxycycline:

If you take any medications, especially these, talk to your doctor:

  • Antibiotics with penicillin.
  • Anesthetics like methoxyflurane.
  • Acne medicines with vitamin A, such as isotretinoin.
  • Other antibiotics like Rifampicin for tuberculosis.
  • Methotrexate for cancer or rheumatoid arthritis.
  • Warfarin for blood clot prevention.
  • Quinapril for high blood pressure.
  • Oral contraceptives (birth control) – Doxycycline can reduce their effectiveness, so take extra precautions during treatment and for 7 days after.
  • Strong sleeping pills (barbiturates).
  • Ergotamine for migraines.
  • Medications with calcium, aluminum, magnesium, or iron, like antacids.
  • Medications for epilepsy, like phenytoin or carbamazepine.
  • Ciclosporin for organ transplants.
  • Ciclosporin, which moderates the immune system.
  • Retinoids for skin conditions.
  • Indigestion remedies (antacids).
  • Stomach ulcer medicines containing bismuth like Pepto-Bismol.
  • Medicines such as antacids (indigestion tablets or liquids) containing aluminium, calcium, magnesium, or other medicines containing iron, bismuth, or zinc salts.

Also, note that an oral typhoid vaccine may not work correctly with doxycycline. However, the injected typhoid vaccine is safe to use while taking antibiotics because it's not a live vaccine.

Mixing Doxycycline with herbal remedies and supplements

Tell your doctor if you're taking any vitamins or supplements including:

  • any medication which contains aluminium, bismuth, calcium, magnesium or zinc

  • iron supplements
When can you drink alcohol after Doxycycline:

Avoid alcohol while taking doxycycline. After finishing your treatment, it's generally safe to have alcohol, but waiting a few days ensures the medication has fully left your body.

Doxycycline and contraceptive pill:

The patient leaflet suggests Doxycycline may reduce the effectiveness of the contraceptive pill. It recommends using extra contraceptive precautions during Doxycycline treatment and for 7 days after stopping. However, the NHS and FSRH advise that additional contraceptive precautions are not necessary. It's essential to discuss this with your healthcare provider for personalized guidance.

NHS Advice on Doxycycline:

From the NHS: Doxycycline does not affect any type of contraception, including the contraceptive pill and emergency contraception. However, if Doxycycline makes you vomit or have severe diarrhoea (6 to 8 watery poos in 24 hours) for more than 24 hours, your combined pill may not protect you from pregnancy. Look on the pill packet to find out what to do.




  • Do I still need to finish my treatment if my symptoms go away earlier?

    Doxycycline should be taken twice daily for 7 days, the course should be completed regardless of whether your symptoms disappear or not. This is to reduce the risk of antibiotic resistance.

  • How do I take doxycycline?

    You should take one capsule twice daily for 7 days, you must finish the full course of treatment. Doxycycline should be taken with or after food. Do not have sex for 7 days after treatment is complete. Swallow the capsule whole with a glass of water. Do not crush or chew the tablet.

  • Who should not take doxyxycline?

    Do not take Doxycycline and tell your doctor, if you:

    • have taken Doxycycline or any other antibiotic before and suffered an allergic reaction (e.g. rash, itching, swelling of the face, fainting and breathing problems)
    • are allergic to any of the other ingredients in Doxycycline Capsules
    • are pregnant or trying to become pregnant are breast-feeding
  • How much doxycycline can I buy?

    You can buy up to 14 doxycycline 100mg capsules for chlamydia treatment. Normally, no repeat prescriptions are given within 3 months, and you may be referred to your own doctor or an STI clinic if necessary.

  • Why is Doxycycline so cheap?

    Doxycycline has been available since the 1960s, and its patent has expired. Many drug companies produce it, creating competition that leads to low prices.

  • Which brand of Doxycycline will I receive?

    Doxycycline is the medical name, and it's a generic medication produced by many pharmaceutical companies. It's also sold as a dispersible tablet under the brand name Vibramycin-D. When prescribed by Ashcroft Pharmacy, you may receive any UK licensed brand of doxycycline.

  • How Does Doxycycline Work?

    Doxycycline belongs to a group of medicines called tetracycline antibiotics. These antibiotics kill bacteria by preventing them from producing the proteins they need to survive.

  • When Will You Feel Better?

    For most infections, you'll start feeling better within a few days. It's crucial to keep taking doxycycline until you've finished your medication to prevent the infection from returning.

  • What If You Don't Get Better?

    • If you're using doxycycline for any other infection, inform your doctor if you don't feel better after 3 days or if your condition worsens at any time.

    • If you're treating rosacea with doxycycline, it may work gradually. Your doctor will typically review your progress after 4 to 6 weeks.
    • When taking doxycycline to prevent malaria, you won't notice a change in how you feel. Continue taking it as prescribed and for 4 weeks after leaving a malaria-prone area.

  • Can Doxycycline Cause Thrush?

    Some individuals may get a fungal infection called thrush after taking antibiotics like doxycycline. Antibiotics can disrupt the normal, harmless bacteria that protect against thrush. If you experience this, seek advice from your pharmacist or doctor.

  • Can Doxycycline Cause Thrush?

    Some individuals may get a fungal infection called thrush after taking antibiotics like doxycycline. Antibiotics can disrupt the normal, harmless bacteria that protect against thrush. If you experience this, seek advice from your pharmacist or doctor.

  • Can Doxycycline Stain Teeth?

    Doxycycline can stick to calcium and potentially stain teeth, but this usually occurs in growing bones and teeth. Therefore, it's typically not prescribed to young children, during pregnancy, or while breastfeeding.

  • Can I take doxycycline if I'm allergic to penicillin?

    Yes, you can take doxycycline even if you have a penicillin allergy because they are different types of antibiotics.

  • Should I use a different medicine instead of doxycycline to prevent sunlight reactions while taking malaria prevention medication in a hot country?

    Doxycycline is commonly used in hot countries. To prevent sunlight reactions, take precautions like wearing protective clothing, a hat, sunglasses, and using sunscreen (SPF 30 or higher).

    If you have concerns, talk to your doctor or pharmacist.

  • Does Doxycycline Impact Contraception?

    Doxycycline doesn't affect contraception, including the combined pill and emergency contraception. However, if doxycycline causes vomiting or severe diarrhea lasting over 24 hours, your combined pill might not fully protect against pregnancy. Check your pill instructions for guidance.

  • Can I drink alcohol while taking doxycycline?

    It's advisable not to drink alcohol while taking doxycycline as it may affect how the medication works. If you have questions, consult your doctor or pharmacist.

  • Is there any food or drink I need to avoid?

    Besides alcohol, you can have your regular diet while taking doxycycline.

  • How long to take doxycycline for chlamydia?

    you need to take doxycycline for seven days to cure chlamydia. During these first seven days, you can still transmit the infection to others and even get re-infected yourself if you have sex. It's essential to inform your sexual partners so they can get treated as well.

  • Can Doxycycline Cure Chlamydia Completely?

    Yes, doxycycline can completely cure chlamydia and other sexually transmitted infections.

  • Is doxycycline 7 day treatment for chlamydia?

    Doxycycline is one option for treating chlamydia, taken daily for a week, and it's effective in curing over 95% of cases when taken correctly.

  • How long after taking doxycycline can I drink alcohol?

    Avoid alcohol while taking doxycycline. You can start drinking again after finishing your treatment, but waiting a few days to ensure the medication has left your body is a good idea.

  • What is the 3 day chlamydia treatment?

    Azithromycin tablets, taken over three days, can effectively clear a chlamydia infection within one week. It starts working in about 2 to 3 hours, and you should begin feeling better after a few days.

  • Is doxycycline 7 day treatment for chlamydia?

    Doxycycline is one option for treating chlamydia, taken daily for a week, and it's effective in curing over 95% of cases when taken correctly.

  • Is doxycycline 21 days for chlamydia?

    For LGV proctitis, doxycycline treatment lasted for 21 days, and the chlamydia DNA was no longer detectable after this extended treatment.

  • Which antibiotic is best for chlamydia?

    The recommended medications for chlamydia are azithromycin and doxycycline, with doxycycline possibly being slightly more effective, according to the CDC and WHO.

  • Can chlamydia be cured in 3 days?

    Chlamydia can be cured with treatment in about a week or two, but the test may still show positive results for up to 4 weeks after treatment. Completing all antibiotics is crucial to fight the infection.

  • Why wait 7 days after chlamydia treatment?

    After receiving single-dose antibiotics or completing a 7-day course, it's crucial to wait for 7 days before engaging in sexual activity. This helps prevent spreading the infection to partners. Remember to take all prescribed medication to cure chlamydia completely.

  • Is doxycycline 200 mg daily for chlamydia?

    Doxycycline can be taken as a 200 mg tablet once daily for 7 days, which is as effective as the standard 100 mg twice daily for the same duration in treating chlamydia in both men and women.

  • What STD is cured by doxycycline?

    Doxycycline can be used to treat several sexually transmitted infections (STIs), including gonorrhea, chlamydia, and syphilis.

  • Will 5 days of doxycycline cure gonorrhea?

    No, 5 days of doxycycline is not enough to cure gonorrhea. You need a full 7-day treatment with the appropriate antibiotics to effectively treat gonorrhea. It's important to complete the full treatment as prescribed by your healthcare provider and practice safe sex to prevent spreading the infection.

  • Is chlamydia gone after 7 day treatment?

    After completing a 7-day course of doxycycline or a 1-dose treatment with azithromycin for chlamydia, you should wait for at least 1 week before having sex again. This waiting period allows the medication to take effect and helps ensure that the infection is gone. It's crucial to follow your healthcare provider's instructions and avoid having sex during this time to prevent reinfection or transmission to your sexual partners.

  • What is the fastest antibiotic for chlamydia?

    The fastest antibiotic treatment for chlamydia is doxycycline, followed by azithromycin as the second choice. Both of these antibiotics are highly effective, with over 90% success rates, and should be taken if you or a recent sexual partner has tested positive for chlamydia. However, it's essential to follow your healthcare provider's guidance and complete the full course of treatment for the best results.

  • Why wait 3 months after chlamydia treatment?

    Waiting for 3 months after chlamydia treatment before getting tested again is essential to detect any potential new infections early. This allows healthcare providers to address any new infections before they can cause further harm to your health. It's important to get tested even if you believe that all your sexual partners have received treatment. Regular testing is a crucial part of preventing the spread of these infections and protecting your health.

  • How do I know chlamydia is gone?

    To confirm that chlamydia is completely gone, especially in cases where there were no initial symptoms, it's essential to undergo another test. This test, often referred to as a 'test of cure,' is most effective when done about six weeks after finishing treatment. It's important to note that reinfection with chlamydia is common, particularly among individuals under 25, highlighting the importance of regular testing.

  • What are the 4 pills for chlamydia at once?

    To treat chlamydia, most people will receive four pills at once. If this is your prescribed treatment, you should take all four pills simultaneously with water. Taking all four pills is necessary to effectively cure the infection. Typically, these azithromycin pills contain 250 mg of the medicine, resulting in a total dosage of 1000 mg when you take all four pills together.

  • Can chlamydia spread through kissing?

    Chlamydia is not spread through casual contact, which means you cannot contract chlamydia from activities such as sharing food or drinks, kissing, hugging, holding hands, coughing, sneezing, or sitting on the toilet. The most effective way to prevent chlamydia is by consistently using condoms and/or dental dams during sexual activity.

  • Can I test for chlamydia at home?

    Yes, you can test for chlamydia at home using at-home chlamydia test kits. These kits typically allow you to detect chlamydia through a urine sample or, in some cases, with anal or oral swabs. The cost of these kits may vary, but they offer a convenient and private way to test for chlamydia without visiting a healthcare provider.

  • Is chlamydia a curable disease?

    Yes, chlamydia is a curable disease. It can be effectively treated and cured with antibiotics such as azithromycin or doxycycline. However, it's important for all sexual partners to be treated to prevent reinfection, and safe sexual practices like condom use should be followed to reduce the risk of contracting or spreading the infection again.

  • Is doxycycline better than azithromycin for chlamydia?

    The effectiveness of doxycycline versus azithromycin for chlamydia treatment may vary depending on individual cases and factors. While some studies have suggested that doxycycline may be more effective for chlamydia treatment, azithromycin is still a recommended and widely used treatment option for chlamydia. The choice between the two antibiotics should be made in consultation with a healthcare provider based on the specific circumstances of the infection and individual patient considerations.

  • How did chlamydia start?

    The exact origins of Chlamydia trachomatis, the bacterium responsible for chlamydia infections, are not entirely clear. However, it is believed that C. trachomatis evolved alongside humans and shared a common ancestor with environmental chlamydiae around 700 million years ago. The evolution and transmission of C. trachomatis may have been closely linked to the development of human populations and their behaviors, particularly sexual contact. While the specific details of how chlamydia started are not known, it is considered a long-standing companion of humans throughout our evolutionary history.

  • Is chlamydia serious?

    Yes, chlamydia can be a serious sexually transmitted disease (STD). If left untreated, it can lead to significant health complications. Chlamydia can cause permanent damage to a woman's reproductive system, potentially making it difficult or impossible for her to become pregnant in the future. It can also increase the risk of potentially fatal conditions like ectopic pregnancy, where a pregnancy occurs outside the womb. Therefore, it is important to seek timely medical treatment if you suspect you have chlamydia to prevent these complications. Safe sexual practices and regular testing can also help prevent the spread of chlamydia.

  • Which country has the highest rate of chlamydia?

    In 2019, Denmark, Iceland, Norway, Sweden, and the United Kingdom had the highest country-specific rates of chlamydia, with over 300 cases per 100,000 population in each of these countries. Together, these countries reported 83% of chlamydia cases in that year, indicating a relatively high prevalence of the infection in these regions. It's important to note that chlamydia rates can vary from year to year and may also be influenced by factors such as testing and reporting practices.


Doxycycline Alternatives:

Doxycycline is the recommended and most effective treatment for chlamydia. However, if Doxycycline isn't suitable for you, azithromycin may be an alternative to consider, although it's no longer the primary choice.

Doxycycline vs. Azithromycin:

While azithromycin was once used to treat chlamydia, its effectiveness has diminished due to bacterial resistance. Azithromycin is now only considered when Doxycycline isn't suitable.

Side Effects

Side effects of Doxycycline

Doxycycline, like all medications, can lead to side effects, although not everyone experiences them. Common side effects, which affect around 1 in 10 individuals, include:

Common side effects of Doxycycline include:

  • Hives
  • Headache
  • Increased heart rate
  • Nausea (feeling sick)
  • Vomiting (being sick)
  • Increased sensitivity of the skin to sunlight
  • Shortness of breath
  • Rashes
  • Inflammation of small blood vessels (Henoch-Schonlein purpura)
  • Elevated intracranial pressure, leading to headaches, blurred vision, or blind spots

If these common side effects trouble you, there are strategies to manage them. However, if they persist or worsen, and the suggested coping methods do not help, consult a doctor or pharmacist.

Uncommon side effects:
Vaginal infections like thrush

Rare side effects involve:

  • Jaundice, characterized by yellowing of the skin and whites of the eyes
  • Yeast infections around the genital or anal area
  • Increased urea levels in your blood
  • Muscle and joint pain
  • Nail abnormalities following sun exposure (photoonycholysis)
  • Skin peeling and redness
  • Liver failure
  • Hepatitis, which is liver inflammation
  • Severe, bloody, or watery diarrhoea
  • Colon inflammation
  • Blood disorders
  • Porphyria, marked by sunlight sensitivity, stomach pain, and nerve inflammation
  • Thyroid tissue discoloration
  • Decreased appetite
  • Anxiety
  • Pancreatitis
  • Flushing
  • Ulcers or inflammation in your gastrointestinal tract
  • Changes in your liver function test results

While you may not experience any of these side effects, if you do and they persist beyond a few days, consult your doctor. In cases of serious side effects, contact your doctor immediately.

Serious side effects

Serious side effects are rare, occurring in fewer than 1 in 1,000 people. You should seek immediate medical attention if you experience any of the following:

  • Unexplained bruising or bleeding, including nosebleeds
  • A sore throat, high temperature, fatigue, or a generally unwell feeling (these can be signs of blood problems)
    Diarrhoea, possibly with stomach cramps, containing blood or mucus (if severe diarrhoea lasts more than 4 days, consult a doctor)
  • Ringing or buzzing in your ears.
  • Pale stools and dark urine, accompanied by yellowing of the whites of the eyes or skin (indicating potential liver problems)
  • Joint or muscle pain since starting doxycycline.
  • Severe headaches, vomiting, and vision problems (possible signs of increased brain pressure, intracranial hypertension)
  • Separation of a fingernail from its base (photo-onycholysis, a reaction to sunlight)
    A sore or swollen mouth, lips, or tongue.
  • Severe stomach pain, with or without bloody diarrhoea, nausea, and vomiting (signs of pancreatitis)
  • Difficulty or pain when swallowing, a sore throat, acid reflux, decreased appetite, or chest pain worsening with eating (possible signs of an inflamed food pipe, oesophagitis, or oesophageal ulcer)

Note: In rare cases, Doxycycline can trigger a severe allergic reaction known as anaphylaxis.
These listed side effects are not exhaustive; refer to the leaflet inside your medicine packet for a complete list.

Managing Doxycycline side effects

Common Doxycycline side effects can be addressed at home. Headaches are the most frequent. To alleviate them, drink ample water, rest, and use over-the-counter pain relievers.

If you experience an upset stomach while taking doxycycline, consume your capsules with food, as it can help. Avoid spicy or rich foods and dairy products like cheese and milk during this period. Take your capsules in an upright position, such as sitting.

Doxycycline and sun

Doxycycline can heighten your skin's sensitivity to sunlight. Even brief sun exposure may lead to itching, rash, redness, severe sunburn, or skin discoloration. While on doxycycline, remember to:

  • Cover your skin adequately.
  • Wear sunglasses.
  • Avoid tanning beds or sunlamps.
  • Apply sunscreen with a high SPF before going out and during the day.
  • Use a sunscreen lip balm.
  • Limit sun exposure as much as possible.

If you experience sunburn or have concerns about your symptoms, consult your doctor.

Doxycycline: dizziness and fatigue

Doxycycline can induce dizziness and fatigue, often indicating low blood pressure. If persistent dizziness and fatigue occur, seek advice from your doctor.

Doxycycline headache

Headaches are a common side effect of doxycycline. You can manage them with paracetamol and ibuprofen, as these are safe to take alongside doxycycline.

If you develop a severe headache accompanied by vomiting or vision issues, it may signal increased brain pressure. In such cases, seek immediate medical attention.

Duration of Doxycycline side effects

Side effects of Doxycycline may persist for a few days as your body adjusts to the medication. Some patients may experience side effects throughout the treatment course. Most of these effects can be managed at home. If they become bothersome, consult your doctor.

How long do Doxycycline side effects stick around?

Remember, most of the usual side effects of Doxycycline will improve shortly after you stop:

problems like nausea, vomiting, and diarrhea should start getting better within a few days of stopping doxycycline.
Sun sensitivity can hang around for about 10 to 14 days after you quit taking it.
Esophagitis typically gets better within 1 to 2 weeks of ending the medication, and sometimes even sooner.


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