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  • Our doctors will review your order information and issue the prescription online direct to our pharmacy.

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  • Our doctors will review your order information and issue the prescription online direct to our pharmacy.

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Doxycycline c

Doxycycline, an antibiotic used to treat a range of infections including chlamydia, is available from Medicinesbymailbox Pharmacy.

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Pills Quantity Cost
Doxycycline 100mg 14 capsules (2 per day for 1 week) tablets £6.5
Compare prices: Medicinesbymailbox prices are 25%-50% lower cost than other online clinics.

Prescription fees

Medicinesbymailbox supplies medicine on prescription and charges a small prescription fee based on the order value of each prescription.Prescriptions are issued by our doctors online and sent electronically to our pharmacy.If you have your own private paper prescription please post to our pharmacy (details).Ascot Pharmacy prices are 25%–50% lower than other UK online clinics.

Order value Prescription fee
Any Order Value £25.00
Items Medicinesbymailbox Dr. Fox Pharmacy2U Superdrug Express Pharmacy Lloyds Med Express
Doxycycline 100mg £6.5 NA NA NA NA NA NA
*Medicinesbymailbox adds a small prescription fee not included in table above.

Delivery charges

UK delivery £2.90 per consultation via Royal Mail 24 Signed For (1-4 working days).

Standard international delivery £5.90 flat rate via Royal Mail International Tracked & Signed (2-5 working days).

Express international delivery £32.00 flat rate via DHL Express (2-8 days depending on destination, with tracking in transit).

Doxycycline product information

Doxycycline, a tetracycline antibiotic, is used to treat a variety of infections. It is also used to treat chlamydia, a sexually transmitted infection (STI). Chlamydia is caused by the infection of a bacterium and doxycycline helps to stop the growth of the organism.

How to take

The usual dose for STI is to take 1 capsule 2 times daily for 7-10 days. Your doctor will be able to advise you on the length of treatment. It is important that you finish the full course of antibiotics to ensure that your infection has been completely cleared. 

You should swallow the capsule with plenty of fluid and preferably after food. This is to reduce the risk of side effect such as stomach upset. You should also be standing or sitting upright while taking the medicine to prevent irritation to the throat. You should NOT take this medicine immediately before lying down.

Side effects of doxycycline

Like all medicines, doxycycline may cause some side effects, although not everyone gets them.

Serious side effects are unusual. The most common side effects are stomach upset, nausea, vomiting.

However, if you experience severe allergic reactions with symptoms such as difficulty breathing, swollen lips, eyes and face and rash or itching, you should stop taking doxycycline immediately and seek urgent medical advice.

Occasionally, it can increase skin sensitivity to sunlight. You are recommended to avoid strong exposure to sunlight and use sunscreen with high sun protection factor.

For the full list of side effects, please read the patient information leaflet attached below.


During a consultation with Medicinesbymailbox, you will be asked to complete an online assessment questionnaire to determine your suitability for the medication. You should NOT take doxycycline without consulting a GP if you:
  • Are pregnant or breastfeeding
  • Have a sensitivity to tetracycline antibiotics
  • Have liver problems or kidney problems
  • Suffer from diseases called myasthenia gravis or SLE (systemic lupus erythematosus)

Some medications can influence the way Doxycycline works and vice versa, such as indigestion remedies, iron supplements, blood thinning medication warfarin and oral contraceptives. If you are unsure about your current medication, you should check with a doctor or pharmacist for advice.

Patient information leaflet – Doxycycline

The 'Patient Information Leaflets' supplied with medication must be read before taking capsules.