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Trimethoprim

Trimethoprim is a type of antibiotic that’s most commonly used for treating urinary tract infections such as cystitis.

It can be used for other conditions, such as kidney infections and acne, but for these, you should see your own GP, as these issues might need other treatments.

Trimethoprim is usually taken twice a day, and is one of the antibiotics that is safe to take with alcohol (as long as you drink sensibly and in moderation).

You can now buy trimethoprim for UTIs from Doctor4U after answering some consultation questions for our doctors to review.

See Trimethoprim Tablets Patient Information Leaflet

Last PIL Review Date: 14/06/2019

Prices start from £15.99 for 6 tablets

£ 15.99 InStock
PLEASE CLICK HERE TO ANSWER SOME QUESTIONS ABOUT YOUR SYMPTOMS
Please note all the answers are reviewed by a doctor to assess eligibility
1
2

Please use a minimum of 1 words.

3
  • Acenocoumarol
  • Colistimethate
  • Dapsone
  • Methotrexate
  • Pyrimethamine
  • Anticoagulants
  • Amiodarone
  • Antibiotics
  • Ciclosporin
  • Rifampicin
  • Phenytoin
  • Immunosuppressant medications
  • Bone marrow depressants
  • ACE inhibitors
  • Angiotensin II inhibitors
  • Heparin
  • Repaglinide
  • Diuretics
  • Procainamide
4

Please use a minimum of 1 words.

5
  • You have an allergy to trimethoprim or other, similar antibiotics
  • You've used this treatment in the past and suffered with serious side effects
  • You're already using a treatment that contains trimethoprim for any reason other than cystitis
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Dr. Daniel Cichi GMC No. 6163403

Dr Daniel Cichi has 20 years experience as a doctor and now he is a senior GP. He worked in A&E departments, GP surgeries and on cruise ships.

Shamir Patel GPHC No. 2049338

Shamir is a well-respected pharmacist with extensive experience running online pharmacies in the UK.

Trimethoprim 200mg

Trimethoprim 200mg is usually given to patients that are suffering from a urinary tract infection. It can be taken by both men and women, but the exact dosage depends on what type of UTI you have.

20mg trimethoprim generally comes in tablet form, but if you struggle to swallow tablets, you may be able to ask your own GP for an oral solution, which might need to be ordered in for you or made up by your local pharmacist.

Trimethoprim 200mg is usually taken twice a day, in the morning and in the evening, though dosages can vary depending on what you’re taking trimethoprim for.

Trimethoprim 200mg is currently only available in generic form, and not as a brand.

Trimethoprim is a safe medication when taken properly, but there are certain groups that need to be careful, as it could end up causing more harm than good in some cases. Examples of those that need to be careful include:

  • Those that are allergic to trimethoprim
  • Those with any type of blood disorder
  • Pregnant women
  • People with severe liver disease
  • Those with kidney problems
  • Anyone with a folic acid deficiency

If you belong to any of these groups of people and think that you may need to take trimethoprim, please contact your GP for more advice, as they may decide it isn’t suitable for you, or that you require additional monitoring whilst taking it.

Trimethoprim for kidney infection

Trimethoprim is sometimes prescribed to patients with a kidney infection. Sometimes, if a UTI is left without treatment, the infection can spread to the kidneys and cause more serious problems, hence why trimethoprim can still help with kidney infections.

If you suspect that you have a kidney infection or a UTI that’s been left untreated for too long, you should see your own GP urgently for a face to face consultation, as you may need to be referred for tests or given a different treatment. A kidney infection can be serious, so it’s important to get seen as quick as possible if you think you might have one.

Trimethoprim for acne

Trimethoprim is sometimes prescribed to treat acne in a similar way to other antibiotics such as lymecycline, minocycline and oxytetracycline. However, it isn’t one of the most commonly prescribed treatments for this condition, as many GPs will recommend a topical treatment first, followed by one of the other antibiotics mentioned before trialling trimethoprim.

Unfortunately, Doctor4U isn’t able to prescribe trimethoprim for acne, as you’ll need to see your own doctor if other treatments haven’t worked for you. This is because you may need to be referred to a specialist before being given a course of trimethoprim to try. If you need other acne treatments, please take a look at which treatments we’re able to offer here.

Trimethoprim for UTI

Trimethoprim is one of the most common treatments for cystitis, something that both men and women can experience.

If you think you need it, Doctor4U can prescribe trimethoprim for a UTI after you’ve completed some consultation questions for our doctors to review.

Trimethoprim works for UTIs by stopping bacteria from producing a protein called folate. Folate is needed for bacteria to produce DNA and multiply, so when folate is taken away, the bacteria dies, clearing the infection. When taking trimethoprim for a UTI, you should start to feel better within 24 hours of starting treatment, and the infection should clear up after 3 days, or however long your course of medication lasts.

Trimethoprim isn’t actually the first-choice antibiotic for many cases of cystitis now, as some bacteria has become resistant to it. Instead, doctors now offer nitrofurantoin as a first-line treatment, with the option to take trimethoprim if you have issues with the alternative. If you’d like to buy nitrofurantoin, please click here to read about the treatment.

Trimethoprim dose for UTI

For uncomplicated UTIs, the recommended dosage of trimethoprim is 200mg taken twice daily – one tablet in the morning and one tablet in the evening.

Trimethoprim tablets are normally prescribed for 3 days for uncomplicated UTIs, which should be long enough for your infection to clear. However, in some cases, your own doctor might recommend taking trimethoprim for up to 14 days. This may happen to you if you are a male, a pregnant woman, or have a severe or complicated UTI that wouldn’t be sufficiently treated with 3 days of antibiotics.

Doctor4U generally gives a 3-day course of trimethoprim to those that complete the consultation form for cystitis, but if you’re still experiencing symptoms after your course of treatment has finished, please see your own GP for a face to face consultation, as you may need to be referred for tests or given a different medicine such as nitrofurantoin.

Trimethoprim side effects

Trimethoprim is an antibiotic, and as with all antibiotics, it has the potential to cause adverse effects. Not everybody that takes trimethoprim gets side effects, and may that do find that they’re mild or easy to deal with. However, if the side effects of your medication outweigh the benefits, you should speak to your own doctor about trying a different treatment.

Some of the most commonly reported trimethoprim side effects include:

High blood levels of potassium
Nausea
Vomiting
Diarrhoea
Headache
Skin rashes and itching
Anaemia
Constipation
Severe diarrhoea
Cough
Agitation or abnormal behaviour
Kidney problems
Dizziness
Tiredness
Convulsions
Shakiness
Tremors
Tinnitus (ringing in the ears)
Vertigo
Eye redness
Pain
Photosensitivity
Low blood sugar levels
Anorexia
Depression
Anxiety
Sleeping difficulties
Nightmares
Confusion
Hallucinations
Jaundice
Joint and muscle aches
Shortness of breath
Wheezing
Nosebleeds
Meningitis
Lupus erythematosus
Purple-coloured skin
Fever
Reduced blood cells

All side effects of trimethoprim are available in the patient information leaflet that comes with your order, and you should read it thoroughly before taking any of the medication.

Other, serious side effects may include:

  • Anaphylactic shock
  • Chest pain, fainting and collapse
  • Blistering or peeling skin, skin lesions and swelling
  • Pancreatitis

If you get any of these side effects whilst taking trimethoprim, you should call 999 immediately.

You may be more at risk of experiencing side effects if you’re already taking one or more of the following medications:

Rifampicin
Anticoagulants
Ciclosporin
Digoxin
Phenytoin
Pyrimethamine
Dapsone
Immunosuppressant medications
Methotrexate
Azathioprine
Bone marrow depressants
Potassium supplements
ACE inhibitors
Angiotensin II antagonists
Heparin
Repaglinide
Diuretics
Procainamide

If you’re already taking any of these medications, please speak to your GP before you buy trimethoprim, as it may not be suitable for you.

Best antibiotic for UTI

Currently, doctors prefer to offer nitrofurantoin as an antibiotic for UTIs, as many infections seem to respond better to that than trimethoprim. However, some people aren’t able to take nitrofurantoin, or find that their infection doesn’t respond to it, and in this case, they will be offered trimethoprim.

Buy trimethoprim

You can buy trimethoprim from Doctor4U after completing a consultation form for cystitis. Once you’ve filled out all questions, it will be sent to our doctors for review. As long as our GMC-registered doctors are satisfied that it’s a suitable treatment for you, they will approve your order and generate a prescription. This will then be dispensed and shipped from our partner pharmacy.

Buy trimethoprim online

When you buy trimethoprim online with Doctor4U, you’re guaranteed a fast, safe and confidential service just as you’d expect from your own doctor.

We understand that it can be difficult to get an appointment with your doctor at a time that suits you, which is why we’ve made it quick and safe to buy trimethoprim online.

If you want to buy trimethoprim from Doctor4U, please click on the consultation button at the top of this page.

Dosage Instructions
Take ONE tablet TWICE daily. Please always complete the course of tablets.
Active ingredients: Trimethoprim
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Trimethoprim Dosage Quantity Cost Including Consultation
Trimethoprim 200mg 6 Tablets £15.99

Delivery Charges

The following delivery methods are currently available within the UK: All orders are sent in discreet, plain packaging.

UK Standard Delivery, £1.99

Order before 12pm to have your order delivered using Royal Mail Tracked 48 Service

standard UK delivery within 3-5 working days

Additional terms and conditions apply.

UK Express Delivery, £2.99

Order before 12pm to have your order delivered using the Express delivery service* (deliveries are made Monday - Saturday)

If you order after 12pm, your order will be dispatched the next working day and will be with you within 48 hours once dispatched. This excludes weekends and bank holidays

Additional terms and conditions apply.

Royal Mail Special Delivery Next Day Anytime, £4.99 (This service includes Saturday)

Order before 12pm to have your order delivered using Royal Mail Special Delivery Service, which includes Saturday deliveries.

Additional terms and conditions apply.

Royal Mail Special Delivery Next Day Before 1pm, £7.99 (This service includes Saturday)

Order before 12pm to have your order delivered before 1pm next day using Royal Mail Special Delivery service, this also includes Saturday deliveries.

Additional terms and conditions apply.

Royal Mail Special Delivery Next Day Before 9am, £14.99 (This service includes Saturday)

Order before 12pm to have your order delivered before 9am next day using Royal Mail Special Delivery service, this also includes Saturday deliveries.

Additional terms and conditions apply.

DPD Next Day Delivery, £4.99 (Monday - Friday only. This service does not include Saturday)

Orders signed by the doctor before 12 noon the day before will be delivered the following working day

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Next Day Delivery, by 12 Noon, £9.99 (Monday - Friday only. This service does not include Saturday)

Orders signed by the doctor before 12 noon the day before will be delivered by 12 noon the following working day

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Next Day Delivery, by 10:30am, £14.99  (Monday - Friday only. This service does not include Saturday)

Orders signed by the doctor before 12 noon the day before will be delivered by 10:30am the following working day

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Saturday Delivery, £14.99

Orders signed by the doctor before 12 noon the day before will be delivered the following Saturday

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply

DPD Saturday Delivery, by 12:00am, £21.99

Orders signed by the doctor before 12 noon the day before will be delivered by 12:00am Saturday

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply.

DPD Saturday Delivery, by 10:30am, £29.99

Orders signed by the doctor before 12 noon the day before will be delivered by 10:30am Saturday

If your order is signed by the doctor after 12 noon, your order will be delivered within 2 working days

Additional terms and conditions apply, please see below.

US and outside the UK

Unfortunately, we can't process orders from outside the UK at this time.


Terms and Conditions

Delivery options exclude Bank Holidays, public holidays and Sundays.All deliveries are subject to Doctor-4-u successfully receiving payment and prescription being approved by the doctor.

All purchases require additional approval, which will involve completion of an online questionnaire and any subsequent approval.

Active ingredients: Trimethoprim
In stock