Trimethoprim is an effective antibiotic that is commonly used to treat uncomplicated urinary tract infections (UTIs), including cystitis.
If you are experiencing the disruptive symptoms of a bladder infection, obtaining treatment fast is essential to prevent the infection from spreading to your kidneys.
At Quick Meds, we streamline the prescription process. You can access prescription antibiotics like trimethoprim from our GPhC-regulated UK online pharmacy, following a short online consultation to review suitability. All approved orders are dispatched promptly and delivered discreetly straight to you.
Trimethoprim Facts at a Glance
Active ingredient | Trimethoprim |
|---|---|
Common Uses | Uncomplicated UTIs, cystitis, kidney infections. |
Standard Dose | 200mg tablets, taken twice daily. |
Course Length | 3 days. |
How it Works | Stops bacteria from multiplying. |
Time to Work | Starts working within 24 to 48 hours. |
What Is Trimethoprim Used For?
Trimethoprim is an antibiotic designed to fight bacterial infections. Whilst it is commonly used to treat uncomplicated urinary tract infections (UTIs) and cystitis, it also plays a role in managing acne and chest infections.
How Does Trimethoprim Fight An Infection
To grow, bacteria need a specific nutrient called tetrahydrofolic acid. Trimethoprim blocks an enzyme that bacteria use to make this nutrient and in doing so, effectively ‘starves’ the bacteria, stopping them growing and multiplying.
As trimethoprim targets bacteria, it has no effect on infections caused by viruses, such as the flu or common cold.
If you are experiencing symptoms of a bladder infection, you can read our in-depth guide to cystitis and UTIs, to learn more about identifying symptoms and preventing future flare-ups.
What Is the Dosage Of Trimethoprim For a UTI?
When treating an uncomplicated UTI, the correct trimethoprim dosage is important to completely clear the infection.
For adult women, the standard trimethoprim dose is:
One trimethoprim 200mg tablet taken twice daily for 3 full days.
Tips For Taking Trimethoprim Tablets
To get the most out of your treatment:
Space doses evenly. - Try to take the doses at the same time every day, roughly 12 hours apart.
Swallow whole. - With a whole glass of water. Do not crush, chew or break them.
Complete the full course. - Even if your symptoms completely disappear. Stopping early.
Read the PIL. - The patient information leaflet (PIL) contains comprehensive safety instructions, ingredient lists and warnings.
Is Trimethoprim A Strong Antibiotic
Patients frequently ask: is trimethoprim a strong antibiotic?
Rather than thinking about ‘strong’ or ‘weak’, clinicians evaluate antibiotics based on how sensitive they are against the bacteria you are targeting. Trimethoprim is very effective as it concentrates in the urinary tract, making it optimal for clearing the bacteria that reside here (E.Coli) during a cystitis breakout.
However, if you have a history of frequent infections, bacteria may have built up resistance to trimethoprim. In these cases a different antibiotic such as Nitrofurantoin can be used. This is a popular first-line alternative which works in a different way to trimethoprim.
How Long Does Trimethoprim Take To Work?
Trimethoprim begins fighting the infection within a few hours of your first dose. Most patients notice a significant improvement in painful symptoms within 24 to 48 hours.
If symptoms do not start to improve after 48 hours of your first dose, or if they worsen significantly, contact your doctor immediately. Signs such as fever, chills, or back pain may indicate the infection is not responding to trimethoprim or is moving up to the kidneys.
Side Effects And Safety
Whilst generally very well tolerated, trimethoprim can cause side effects, though not everyone gets them.
Common Side Effects
The most common side effects, which are typically mild and go away on their own after finishing the course include:
Nausea or vomiting
Mild diarrhoea
Headaches
Mild skin itching.
For a comprehensive guide into managing these symptoms, please consult our detailed guide on trimethoprim side effects and safety.
Severe Side Effects
If you experience signs of a severe allergic reaction (anaphylaxis), you should stop taking the medication and seek immediate medical attention. Signs to look out for include:
Swelling of the face, tongue, lips or throat.
Severe difficulty breathing or swallowing.
A severe, blistering rash.
Who Should Not Take Trimethoprim
Whilst generally a well tolerated medication, trimethoprim should not be taken by anyone who:
Has ever had an allergic reaction to trimethoprim.
Is pregnant, or planning a pregnancy.
Has severe kidney or liver disease.
Has blood disorders such as anaemia or porphyria.
How much does trimethoprim cost?
At Quick Meds, we believe in transparent pricing with no hidden fees.
A standard 3-day course of trimethoprim 200mg tablets (6 tablets) costs £XX.XX. This includes the cost of clinical assessment and private prescription fees, but excludes postage and packaging costs which are calculated at checkout.
Can I Buy Trimethoprim Online In The UK?
Yes, if you are suffering from cystitis, you can safely purchase trimethoprim online in the UK through GPhC-registered providers like Quick Meds.
As a prescription-only treatment (POM), you cannot simply add the medicine to your basket and checkout. Our online clinic streamlines the process:
Complete a consultation - which asks about your current symptoms, your medical history and if you take other medication.
Clinical review - a UK-registered prescriber reviews your responses for safety and appropriateness.
Discreet delivery - once approved, your order is packed in plain, unmarked packaging and shipped straight to your door.
