• Buy Trimethoprim 200mg tablets

Trimethoprim Tablets

  • Type


  • Consumption


  • Availability

    In Stock

  • 3-Day Antibiotic Course
  • Relief From Cystitis And Urinary Tract Infections
  • Active Ingredient: Trimethoprim
  • Buy With Confidence From UK Registered Pharmacy

Trimethoprim Tablets

From £14.99

Medication features

Trimethoprim is an antibiotic that treats urinary tract infections (UTI’s). It is usually a short course lasting three days but can be prescribed for 5 and 7 days if required depending on the severity. It is taken twice a day, one in the morning and evening. It is recommended that the course should be completed even if symptoms have subsided, to prevent a re-occurrence

Please note: This page is only to be used as a reference of our price for this medication. If you are approved you will be offered treatment for you and the prescriber to jointly consider. However, the final decision will always be the prescriber's.
NOTE: After selecting this product, you will need to complete a short assessment, so we can make sure this medication is suitable for you.
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  • Overview

    What is Trimethoprim?

    Trimethoprim is a course of antibiotic tablets designed to alleviate the symptoms of cystitis to eventually clear the infection completely. Many people find symptoms significantly lessening within three days and clearing completely by the end of the course. Trimethoprim can be used for many bacterial infections but it's most popular use is for UTIs, in particular cystitis.

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  • How does Trimethoprim work?

    Being an antibiotic, Trimethoprim can treat and cure bacterial infections such as cystitis. It works by hindering the production of folic acid (folate) so the bacteria cannot replicate its DNA and multiply. By stopping this progress, Trimethoprim halts the spread of infection, allowing your immune system to take over, killing the bacteria.

  • How do I use Trimethoprim?

    For uncomplicated lower urinary tract infection (cystitis) you must take ONE tablet twice daily for 3 days.

    • All tablets to be taken with water, with or without food

    If you forget a pill, take it as soon as you remember unless it is near to your next dose. If this is the case, miss completely and continue to finish the dosage. Never take a double dose to make up for a missed pill.

  • FAQ

    • What is Cystitis?

      Cystitis is the medical term given to inflammation of the bladder. It is commonly caused by a bacterial infection and known as a Urinary Tract Infection (UTI).

    • What are the symptoms of Cystitis?

      The signs and symptoms of Cystitis include:

      • Persistent urge to pass urine
      • Burning sensation when urinating
      • Discomfort in pelvic area
      • Blood in the urine (hematuria)
      • Passing of cloudy or strong-smelling urine


    • Is Cystitis common?

      Women get cystitis more often than men because their anus (back passage) is closer to their urethra, and their urethra is much shorter, which means bacteria may be able to get into the bladder more easily.

      The urethra is longer in men than women, this makes it harder for bacteria to travel up to the bladder. Men can also get cystitis but this is significantly less common and they must visit their GP to rule out other serious conditions such as urinary obstruction, enlarged prostate or tumours.

    • How can I prevent cystitis?

      If you suffer from cystitis regularly, there are measures you can apply to stop it reoccurring. These included but are not limited to:

      • Stay Hydrated: drink plenty of water
      • Urinate Frequently: if you feel the urge, do not delay passing urine.
      • Wipe from front to back: this is in reference to wiping after a bowel movement. It prevents the bacteria from faeces spreading to the vaginal area.
      • Use Non-Perfumed products: use perfume free or plain feminine products in the genital area. 
      • Pass Urine as soon as possible after sexual intercourse: drinking lots of water helps flush bacteria
      • Gently wash the skin around genital area: do this daily but take care to not use harsh soaps or wash too vigorously in these delicate areas.
    • Is Cystitis contagious?

      Cystitis is a bacterial infection, however it cannot be transmitted like the common cold. Cystitis is not contagious; you do not need to worry about passing it on to others.

    • What is the treatment for Cystitis?

      The treatment for cystitis depends on it's severity.

      For mild infections, you can make the urine less acidic by avoiding carbonated drinks and drinking lots of water. There are also simple sachets such as Cystopurin, Canesten Oasis, Potassium Citrate mixtures.

      For more troublesome infections, the bacterial infection can be treated using antibiotics such as Trimethoprim or Macrobid (Nitrofurantoin). These are both available through our online pharmacy


    • What is the best antibiotic for Cystitis?

      For any bacterial infection, the best antibiotic is dependent on what bacteria is causing the infection. The most common type of bacteria for uncomplicated urinary tract infections is E-Coli.

      In the UK, NICE determine guidelines for prescribing using an evidence-based approach. 

      The antibiotics which are given to treat this bacteria are Trimethoprim or Nitrofurantoin. If your symptoms do not improve after completing a course of these antibiotics, it is imperative that you see your GP to have a urine analysis carried out. 


    • Can you buy treatment over the counter for Cystitis?

      There are sachets containing Sodium Bicarbonate or Potassium Citrate which are available over the counter. These alleviate the symptoms however they simply reduce the acidity of urine and their effectiveness lacks sufficient evidence.


    • Can I take Trimethoprim when pregnant?

      No, Trimethoprim is not safe for use in pregnancy

    • Do I need to take Trimethoprim with food?

      There are no specific requirements for Trimethoprim to be taken with or without food. 

    • Is it safe to buy Trimethoprim online?

      It is safe to buy treatments from a regulated and UK registered pharmacy. Cloud Pharmacy is registered and based in the UK. It holds all of the necessary certifications in order to proivde safe and responsible prescription treatments online. The medicines are from the same suppliers as your local high street pharmacies. Our online prescribers thoroughly review your consultation to ensure you are given the correct care.


    • Does cranberry juice treat Cystitis?

      It is said that cranberry containing products including juice stop harmful bacteria binding to the wall of the bladder. There is insufficient evidence surrounding this however some studies have shown it to be effective. 

      As a healthcare provider in the UK, we support the government's stance that cranberry juice does not treat the symptoms of cystitis

  • Side Effects

    As with all medications, side effects are common and should subside with time. Should you be worried about any of the side effects associated with trimethoprim, please contact your GP or a member of our team. Side effects include:

    • Nausea
    • Itching or mild rash
    • Headaches
    • Diarrhoea

    If you experience any of the below side effects, you should stop taking the medication immediately and contact a healthcare professional:

    • Chest pain
    • Diarrhoea containing blood
    • Muscle weakness
    • Unexplained bruising or bleeding

    Symptoms of a severe allergic reaction such as swelling of the tongue, trouble breathing or talking, or tightness of the chest

  • Info Leaflet

    Before taking any medication, it is important to read the Patient Information Leaflet. 

    These can be found on medicines.org by typing them into the search bar.

  • Warnings

    Precautions to be aware of whilst taking Trimethoprim include:

    • Consult your doctor before taking when breastfeeding
    • If you have a mineral imbalance
    • If you are diabetic
    • If you have an impaired or hepatic function
    • If you have a folate deficiency
    • If you have liver or kidney disease
    • If you have a blood disorder
    • You should not use Trimethoprim if you are pregnant
    • Stop taking the medication if you have symptoms of an allergic reaction

    Before taking any prescription medication, you must read the leaflet fully and complete the consultation including your medical history and current medication you are taking.


  • Ingredients

    Each tablet contains 200mg Trimethoprim.