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Doxycycline
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Azithromycin
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Chlamydia,a common STI

What causes chlamydia?

The infection itself is caused by a bacterium called chlamydia trachomatis. The bacteria can be found in both semen and vaginal fluid, meaning that it can be spread through unprotected vaginal, anal or oral sex. It can also spread through sharing sex toys as it is present in even trace amounts of fluids.

What are the symptoms?

Of the people who contract the infection, 50% of men and 75% of women will not present any symptoms at all, so it's important not to rely on this to ensure you are not infected. However, some symptoms include pain during urination and unusual discharge or bleeding from the vagina, penis or anus. The symptoms can often be confused with other less serious conditions as the symptoms may disappear, but that does not mean the infection is cured.

Are there any complications which can arise from contracting chlamydia?

If it is identified in its early stages, most cases of chlamydia can be easily treated with no further complications. However, if left untreated it can cause serious health problems. For women, if untreated it can lead to pelvic inflammatory disease (PID), which causes inflammation of the ovaries, uterus and fallopian tubes and can cause scarring, infertility and a propensity to other infections.

In men, untreated chlamydia can lead to inflammation of the testicles and a decrease in male fertility, as they may no longer be able to produce sperm.

What medication is available to treat chlamydia?

There are two types of antibiotic that are used to cure Chlamydia, prescribed at different stages. Doxycycline is the first line treatment with a 100 mg tablet taken twice daily for seven days.

Azithromycin is a second line treatment with a single 1 g dose followed by a 500 mg tablet taken once daily for two days.

Can you buy the medication online?

Both treatments are available to buy online at 121doc. In order to ensure the medication is safe and effective for you to use, you will be required to complete a free and confidential online consultation. You will then be issued a prescription so that the pharmacy can dispense your order for free next day delivery and your medication could be with you within 24 hours.

Our sexual health blog posts will give you lots more information on STI's and other general health issues in an easy to understand format.

Medical review byDr. Caroline FontanaLast review 31 October 2025
Dr. Caroline Fontana

FAQs

What is included in the online consultation?
Will a doctor review my consultation?
What happens after I submit my order?
What services are included with my order?
Is the price all-inclusive?
What are my delivery options?
Is it safe to buy prescription medication online?
Is this service discreet?
What is included in the online consultation?

Our online consultations are in the format of short medical questionnaires. You will be asked general questions about your health and medical history, as well as specific medical questions relevant to the treatment you have chosen. We will also ask you for your payment and delivery details to complete the order.

Online consultations take no longer than 5 minutes to complete. All questions are necessary when issuing prescription medicines. It means that our doctors can make sure the treatment is safe and right for you.

Will a doctor review my consultation?

Yes, it is a legal requirement that all online consultations are reviewed by a registered doctor. This is to make sure the chosen treatment is safe and right for you to take. All personal information is stored securely and confidentially.

Please note, all orders are subject to doctor approval, and we cannot guarantee that your order will be approved.

What happens after I submit my order?

Your online consultation will be sent directly to our medical team, where it will be reviewed by on of our in-house doctors.

If a doctor approves you for treatment, they will issue a prescription. Your prescription will then be forwarded to our pharmacist, where you medication will be dispensed and dispatched for delivery.

What services are included with my order?

Every order includes:

  • Free consultation - your consultation will be personally reviewed by one of our registered doctors.
  • Free prescription - a doctor will issue you a prescription if approved for treatment.
  • Free delivery - we provide free express delivery across Europe, you should receive your order in 1-2 working days.
Is the price all-inclusive?

Yes, our service is all-inclusive and there are no hidden fees. All 121doc orders include a free online consultation, a free prescription and free express delivery.

What are my delivery options?

We offer several delivery options at no extra charge:

  • Next-day delivery
  • UPS Access Point - convenient parcel drop-off and collection near your home or work address
  • Nominated-day delivery - choose the most convenient day for delivery

All these options can be tracked and require a signature on delivery. If you are not in, a friend or relative can sign in your place.

Is it safe to buy prescription medication online?

It is safe to buy prescription medications online from genuine and reputable healthcare providers, like 121doc.

Our medical staff and facilities are registered with the relevant medical governing bodies. We also ensure your data is protected by adhering to European data privacy laws.

You can learn more about our certifications here.

Is this service discreet?

Our patients’ privacy is of utmost importance. All your medical information is securely stored and only viewed by our doctors. We do not share your details with third-parties. We are also closely adhere to data privacy laws.

All orders will only show on invoices, bank statements, etc. as ‘HHC Ltd’.