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Doxycycline is a multi-spectrum antibiotic that's used to cure sexually transmitted infections (STIs) and prevent malaria. It is used widely to combat infections caused by bacteria but is particularly effective at treating chlamydia, bacterial vaginosis and syphilis.

Doxycycline at a glance:

  • Treats sexually transmitted infections
  • Prevents malaria
  • Easy to take 100mg tablet
  • Proven safe and reliable
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How to buy Doxycycline?

When buying Doxycycline for chlamydia, you will have had to of tested positive for the infection. You will then obtain a prescription. Testing for chlamydia can be done at some doctor's surgeries, sexual health clinics and at home if you are a young person between 16-24 years in the UK. When buying Doxycycline online, you will still require a prescription. This can be easily obtained when completing our quick consultation that will take approximately five minutes. A certified doctor reviews this and then you can order Azithromycin online.

Is it safe to order online?

When ordering from a certified online pharmacy, you can be ensured that your medication is safe. If the pharmacy doesn't ask you to complete essential health and medical question, however, this is a telltale sign that the website isn't certified. The website should also display clear signs that it is registered and approved by the relevant authorities. In the UK, this includes being registered by the MHRA, GMC .

All medication will be delivered in tamper proof packaging complete with the full patient leaflet, which confirms that the medication is clinically proven and highly effective.

What is included in the price?

When ordering Doxycycline online here at HEALTHSITE, this is an all-inclusive price including the prescription, consultation, medication and delivery. There are no hidden costs. The price adjusts depending on the dosage and quantity you have ordered, which can be seen below:

Can you buy without a prescription?

No, you will need a prescription to buy Doxycycline. This is to ensure it's suitable for you and is prescribed at the correct dose for your ailment. It is possible to buy Doxycycline online once you have a prescription. You can obtain this prescription from your doctor or by completing on an online consultation. It's not possible to obtain any type of antibiotic over-the-counter at your pharmacy.

Doxycycline is a safe, popular and effective treatment for STI in particular. When taken according to your prescription it is a safe and effective multi-spectrum antibiotic.

What is Doxycycline?

Doxycycline is a tetracycline antibiotic. It works by slowing down the growth of bacteria. This allows your immune system to clear a bacterial infection quickly and effectively.

Doxycycline is usually taken as a high dose tablet of 100mg over the course of a week. This means it works quickly to clear your symptoms and reduces the associated worry of passing on infection.

If you are taking Doxycycline to treat an STI it's advisable to undertake an STI screening before and after the course to ensure all infection has gone. Do not have unprotected sex until your infection is cleared completely or your risk passing on the infection.

What is Doxycycline used for?

Doxycycline is a wide spectrum antibiotic that used for the treatment of STIs including:

  • Chlamydia

Symptoms of this common bacterial STI include painful urination, unusual discharge, inter-period bleeding and testicle pain in men. Often chlamydia symptoms are silent, meaning you can contract the disease and not realise it. Chlamydia infection affects the genitals, anus, eyes, mouth and throat.

  • Bacterial vaginosis

Symptoms are a fishy, watery discharge that's white or grey. This may become more apparent after sexual intercourse. It's poorly understood, but is caused by a bacterial infection in the vagina. Bacterial Vaginosis (BV) isn't classed as an STI, but it's more common in sexually active women. It's thought that douching, perfumed shower gels and the intrauterine device (IUD contraception) can trigger an infection.

  • Gonorrhoea

This is another common bacterial STI affecting both men and women. Symptoms include penile or vaginal discharge which can be white, green or yellow in colour, pain on urination, pain between periods and an inflamed foreskin. It can affect the genitals, anus, mouth, throat and eyes.

As there is a resistant strain of this infection in areas of the UK, individuals are encouraged to visit the STI clinic for the gonorrhoea injection rather than taking the antibiotics.

  • Syphilis

Syphilis is a less common bacterial infection although numbers of the STI have been growing in the UK.

Syphilis requires a different dose of Doxycycline to other STIs. If you have contracted syphilis the primary symptom of an ulcer or spot will pass within a few weeks. The secondary symptoms that appear a few weeks later include a red rash, skin growths similar to genital warts, flu-like symptoms, and hair loss. If it's not treated syphilis will pass to a third stage that can lead to life-threatening symptoms, blindness and loss of coordination.

If you are taking Doxycycline to treat an STI it's recommended that you have an STI test at your local GUM clinic or doctor's surgery first. This is to ensure you don't also have syphilis, which can be treated by Doxycycline but at a different dosage and frequency.

  • Malaria

Doxycycline is an effective preventative measure and treatment for malaria.

Malaria is widespread in tropical countries. It's serious and can be fatal unless a preventative medication is taken before exposure.

The Anopheles mosquito carries a parasite called plasmodium. The plasmodium parasite is passed into your blood supply when you're bitten. From there the parasite swiftly infects the liver and multiplies. Eventually, the parasite is numerous enough to invade red blood cells and burst them, which causes more parasite infection and severe illness. The early symptoms of malaria are heavy fever, diarrhoea and fatigue.

Doxycycline is an effective preventive antimalarial. It can provide protection against malaria parasites that have become immune to standard antimalarials such as Avloclor. It provides protection against all of the different malaria parasites.

As well as being an effective antimalarial Doxycycline also prevents leptospirosis (a freshwater bacterial contamination from animal urine). It prevents scrub typhus, and traveller's diarrhoea too.

Other bacterial infections

Doxycycline is an effective medicine for bacterial chest, nasal, sinus and lung infections. Kidney, bladder infections, eye infections and acne are all effectively targeted by Doxycycline. If you require Doxycycline for any other reason than chlamydia, please visit your doctor in person as dosages and quantities differ depending on the infection.

How does Doxycycline work?

Bacteria spreads quickly throughout the body causing painful symptoms and fever or chills. Doxycycline prevents the spread by diminishing the bacteria's ability to make proteins that keep it alive and multiplying. The bacteria is so hampered by Doxycycline that your immune system is able to quickly destroy the infection.

When taken according to your prescription Doxycycline is reliable and effective way to treat bacterial infections.

How to take Doxycycline

Your doctor will prescribe the correct amount and frequency of Doxycycline for you, but for STIs, the standard dose is one 100mg tablet per day for a minimum of seven days.

You take the tablet orally with a full drink of water and must finish the entire course to be sure the bacteria is completely destroyed.

Treatment dosages

Doxycycline is available in a 100mg dose. This is usually sufficient to clear an STI within seven to ten days, but if your infection or medical history suggests you need a different dose your doctor will prescribe something different.

  • Take one Doxycycline tablet twice daily for a period of seven to ten days. Syphilis requires a treatment of 300mg over at least ten days. Your doctor will advise you further.
  • Doxycycline is effective against STIs in lower doses too, making it ideal for people who find antibiotics affect their digestive systems or cause unwanted side effects.
  • To prevent malaria you'll need to take 100 mgs one to two days beforehand and up to four weeks after you return. To prevent traveller's diarrhoea you need to take a double dose on the first day followed by one dose of 100 mg on each day of travel.
  • All other infection such as chest, kidney or urinary tract infections are usually treated at 100mg once a day.
  • A secondary benefit of Doxycycline is that it treats acne. Generally this is taken at a half dose of 50mgs a day, but your doctor will advise you.

As with all antibiotics it's important to finish the whole course even if you start to feel better. This is because some infection may remain behind that will start to multiply once the Doxycycline is stopped. This will mean a second course of antibiotic is necessary.

If you forget a dose take it when you remember, but skip it if the next dose is due imminently. Doubling up on a dose increases the risk of side effects.

If you need to take more than one dose a day spread them evenly to ensure you receive maximum benefit.

Doxycycline Side Effects

Side effects can occur when you take Doxycycline however they are unlikely as the dose is generally 100mgs, which is tolerated by most people.

The most common are nausea, vomiting, diarrhoea, abdominal pain and indigestion, loss of appetite, flushing, an itchy vagina, and difficulty swallowing.

More serious but rare side effects need medical attention. You should always read the medicines leaflet included in your dose of Doxycycline. Rare but serious side effects include:

  • Difficulty breathing, hives, or swollen lips and throat that indicate an allergic reaction
  • Red eyes
  • Throat irritation
  • Visual disturbances
  • Severe diarrhoea including bloody stools or watery faeces
  • Weakness, swollen glands, flu symptoms and aching muscles
  • Jaundice - yellowing of the skin and eyes
  • Irregular heartbeat, palpitations and shortness of breath
  • Inability to urinate
  • Confusion
  • New cough or worsening cough
  • Increased pressure in your skull
  • Severe skin reactions - a red rash that peels and blisters

Always seek prompt medical treatment if you experience a persistent side effect from your medication.

Doxycycline Precautions

All medicines have the ability to interfere with your current medications or cause side effects.

  • Women using oral contraceptives. If you are planning to take Doxycycline and you rely on an oral contraceptive such as the combined or mini pill you should use barrier contraception during and for seven days after you finish the course. This is because Doxycycline reduces the efficacy of the oral contraception. Oral contraceptives may also interfere with how well Doxycycline works on your infection.
  • If you are pregnant or breastfeeding you should not take Doxycycline as it could affect your unborn baby. Speak to your doctor about a safe alternative.
  • Avoid sun beds and exposure to the sun. Doxycycline makes it more likely you will sunburn. Use a high SPF lotion and keep your skin covered, including your scalp.
  • Drinking alcohol can interfere with your Doxycycline course. It's best to avoid alcohol for the duration of your treatment.

Who Can And Can't Use Doxycycline

Doxycycline is well tolerated by most people but there are some people who should avoid it. To be sure it's safe for you should disclose all information in your consultation including other medications such as herbal remedies and vitamin supplements.

If you are affected by the following Doxycycline may not be suitable for you.

  • You are allergic to Doxycycline or other tetracycline antibiotics.
  • You are under twelve. Doxycycline causes permanent yellowing and greying of the teeth in children.
  • You are trying to fall pregnant or think you might be pregnant.
  • You are breastfeeding.
  • You have liver or kidney disease.
  • You have asthma.
  • You have a sulphite allergy.
  • You take seizure (epilepsy) medicine.
  • You take a blood thinner such as warfarin.
  • You have a history of increased pressure in your skull.
  • You take isotretinoin.

In pregnancy

All medicines should be used with caution in pregnancy. Doxycycline is no exception. It's advised that you don't use Doxycycline when you are pregnant because it can harm your unborn baby. If you're breastfeeding the use of Doxycycline can pass into your breast milk and affect tooth and bone development. This leads to permanent tooth discolouration in children up to the age of 12.

If you believe you have an STI during your pregnancy or when you are breastfeeding it's essential to seek treatment. STIs can seriously damage your baby and lead to miscarriage. Your doctor can suggest an alternative medicine or may tell you to take Doxycycline depending on the severity of your infection.

Other medication interactions

Other medicines can interfere with how Doxycycline works, and Doxycycline can affect your current medication.

If you are taking any over the counter remedies, including herbal supplements, cold and flu medicines or illicit drugs tell your doctor so they can ensure there are no interactions.

These are some of the interactions, but always read the enclosed information leaflet that is provided with your course of Doxycycline.

Within or after two hours of taking Doxycycline you should not take:

  • Iron supplements
  • Multivitamins
  • Calcium supplements
  • Antacids
  • Laxatives

If you take any of the following you should not take Doxycycline unless your doctor tells you too:

  • Other antibiotics, such as penicillin and rifampicin.
  • Anticoagulants, such as warfarin.
  • Quinapril to lower blood pressure.
  • Kaolin used to treat upset stomachs.
  • Sucralfate for use with stomach ulcers.
  • Barbiturates, e.g. sleeping tablets.
  • Ergotamine or methysergide for migraines.
  • Typhoid vaccine.
  • Epilepsy drugs.
  • Ciclosporin used after organ transplant.
  • The anaesthetic Methoxyflurane. Always tell your surgeon you have taken Doxycycline if you are due an operation.
  • Methotrexate used to treat rheumatoid arthritis, cancer and psoriasis.
  • Antacids.
  • Retinoid to treat skin conditions.
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  • Doctor issues prescription

    Online doctor checks your medical form, a prescription is created and sent directly to our pharmacy who will then dispatch your medication.

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    Our registered UK pharmacy will complete a final dispatch check ensuring you receive the right treatment the following day.

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