pack of Trimethoprim 200mg tablets

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Trimethoprim

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Trimethoprim is an antibiotic used to treat cystitis in women. Treatment with this antibiotic involves taking six trimethoprim 200mg tablets over the course of three days. 

You need a prescription to buy trimethoprim online. Our convenient service allows you to obtain your prescription and medication online without having to see a doctor. We can also provide a treatment for you to keep at hand for future infections. 

To place your order, fill in our brief questionnaire and select your preferred treatment. Our doctor will check whether your symptoms indicate that you have cystitis and approve an appropriate treatment.

6 tablets - three day course £23

Price includes prescription and delivery.

In a hurry? Choose Click and Collect and pick up your order after just 3 hours from a Superdrug Pharmacy.

Delivery options

Delivery method Cost Estimated delivery

You will choose your delivery option at the checkout. Delivery options may vary depending on the pack size and dosage chosen.

About Trimethoprim

Trimethoprim Dosage

Cystitis is caused by bacteria. Trimethoprim is an antibiotic, which kills these bacteria.The standard dosage when taking trimethoprim for UTI (Urine Tract Infections) treatment is 200mg taken twice every day for three days. Please note, product packaging may differ from the image above.

How to take trimethoprim

You should take one trimethoprim tablet in the morning and one in the evening. The tablets need to be taken at the same time every day. You need to swallow each tablet whole with a glass of water. You can take the tablets with or without food. 

If you forget to take a tablet, just take the missed trimethoprim dose as soon as you remember and then continue treatment at the correct time, but do not take a double dose to make up for a forgotten dose.

It is very important that you take the full course you have been prescribed, even if your symptoms improve. Stopping treatment early could worsen your condition and it could mean that the bacteria which cause your infection become resistant to the antibiotic.

Trimethoprim and Alcohol

Trimethoprim does not interact with alcohol, which means that you can drink alcohol during your treatment. However, if you are taking trimethoprim for a UTI (urinary tract infection), you should avoid alcohol and ensure you drink plenty of clear fluids.

Who can take trimethoprim?

You mustn’t take trimethoprim if you are allergic to any of the ingredients in the tablets. The antibiotic is also not suitable for women who are pregnant, patients who have a blood disorder or severe kidney disease.

If you are having dialysis for your kidneys, are breastfeeding or are deficient in folic acid, make sure you mention this to your doctor before using trimethoprim.

Do I need a prescription?

Like most antibiotics, trimethoprim is only available on prescription. Your can visit your GP or obtain your prescription online from Superdrug Online Doctor. It is important that a doctor confirms that trimethoprim is suitable for you, as it may not be the right treatment for you, depending on your condition and medical history. 

Does trimethoprim affect the contraceptive pill?

Trimethoprim does not have any effect on the efficacy of the contraceptive pill or any other hormonal contraceptive. You won’t need to take additional precautions to avoid pregnancy while you are using trimethoprim.

Trimethoprim Side Effects

Trimethoprim can cause side effects in some cases.

The following side effects can occur:

  • trimethoprim can alter the numbers of certain blood cells, which might show up in blood tests
  • nausea and feeling sick
  • sore mouth
  • rash (mild to severe)
  • skin changes: itchy, scaly, flaking or swollen
  • circular red patches on your skin
  • Stevens-Johnson syndrome (a severe rash with flushing, fever, and blisters)
  • toxic epidermal necrolysis (a severe rash with red, peeling, swollen skin that looks as if it has been burned)
  • flushing, fever and ulcers
  • changes is your liver enzymes (which may show in tests)
  • jaundice (yellowing of the eyes)
  • cramps, muscle pain, an irregular heartbeat, tiredness or weakness (caused by high potassium)
  • headache
  • swollen tongue
  • increase of levels of creatinine or urea (which may show in kidney function tests)

Seek medical help immediately if:

  • you experience unusual bruising, throat infections or nose bleeds
  • you experience signs of an allergic reaction (such as swellings to the face or tongue, difficulty breathing, shock or fainting)
  • you experience a headache, fever, unusual sensitivity to sunlight, a stiff neck or you feel very ill (which could be caused by aseptic meningitis)

For a full list of side effects read the patient leaflet provided with your antibiotic.

Drug Interactions

Do not take Trimethoprim if you are taking:

  • certain antibiotics (for example rifampicin)
  • some malaria medications (for example pyrimethamine)
  • certain medications used to treat heart conditions (such as digoxin)
  • medications to stop your blood clotting (for example warfarin)
  • medications to prevent rejection after organ transplantation (for example ciclosporin)
  • medications used to treat epilepsy
  • bone marrow depressants

Tell your doctor about any other medication you are taking before beginning treatment with trimethoprim.

Trimethoprim cannot be taken by pregnant women and it is not suitable for patients with a blood disorder, a deficiency in folic acid or a severe kidney problem.
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4.7 Excellent

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    by , 24th Mar 2017
    Very easy and quick to order. Saved the hassle of organising a dr appointment.

  • 5
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    by , 19th Mar 2017
    Great service product was ready and waiting within 2 hours of going online.

  • 5
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    by , 6th Mar 2017
    Product didn't work and cost £25!! All because I couldn't get into my doctors. What a waste of time

  • 5
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    by , 4th Nov 2016
    Product was fine. Delivery was very slow though.

  • 5
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    by , 8th Sep 2016
    Excellent quick and efficient service.

  • 5
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    by , 2nd Sep 2016
    Excellent service , will use again

  • 5
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    by , 16th Aug 2016
    Very convenient, great when I was travelling and couldn't get to my doctors.

  • 5
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    by , 7th Aug 2016
    Good fast trusted service and product was as requested. However if I had been able to get a GP appointment at my local surgery, I would not have needed this service.

  • 5
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    by , 5th Aug 2016
    Good quick service for the times when you need an easy prescription and you'd have to wait a week to see a GP. Bit pricey, but useful and speedy.

  • 5
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    by , 19th Jul 2016
    I was a new customer, but it was easy to register and order what I needed. After answering some questions about my symptoms it was sorted. Went to the superdrug in Bridlington my prescription was ready and waiting. Very nice pharmacist. Sorted.

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    by , 18th Jul 2016
    Worked well against uti cleared up quickly.

  • 5
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    by , 25th Jun 2016
    Absolutely excellent service

  • 5
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    by , 12th Jun 2016
    What a great service when I needed medication urgently

  • 5
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    by , 11th Jun 2016
    It was so easy to get the prescription drugs I so needed quickly. I ordered them and within three hours I picked them up from my local superdrug ...A big thankyou .

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    by , 4th Jun 2016
    Very happy with the service and product. Tablets were very effective. Placed order at 11.30 and picked up order at 3.30. Own doctors couldn't get appointment for 10 days and was in no fit state to go out. So thank you superdrug and doctors involved. Would use service again..brilliant..(I did know what the medical problem was so knew what to order).

  • 5
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    by , 27th Mar 2016
    Great quick deliveries promised

  • 5
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    by , 14th Mar 2016
    Brilliant had the worst water infection ever got my antibiotics next day got rid ov it really quickly

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17 reviews in total << >>