Buy Bactrim
bactrim
$15.60
- Active ingredient: Trimethoprim
- Category: Antivirals | Antibiotics
- Delivery time: Airmail (14-21 days) | EMS trackable (5-9 days)
- Prescription: Included
- Availability: In Stock
Bactrim (Trimethoprim/Sulfamethoxazole) tablets are available to purchase from our Singapore pharmacy with reliable delivery. This combination antibiotic works by blocking two consecutive steps in bacterial folate synthesis, effectively treating various infections. It is an appropriate choice for adults dealing with urinary tract infections, respiratory infections, or travelers' diarrhea who require broad-spectrum antibiotic coverage.
Table of contents
- Bactrim (Trimethoprim) Buyer and Patient Handbook in Singapore
- What is Bactrim?
- Who Should Use Bactrim?
- How Does It Work?
- Why Choose Bactrim?
- Dosage, Administration, Lifestyle and Dietary Recommendations
- Recommended Dosage
- How to Take
- Missed Dose
- Overdose
- Special Populations
- Lifestyle & Diet
- Precautions and Warnings
- Drug Interactions
- Potential Side Effects
- Common Side Effects
- Less Common Side Effects
- Serious Side Effects
- Who Should Avoid This Medication?
- Storage Instructions
- Bactrim Alternatives
- Frequently Asked Questions
- How long does a typical Bactrim course last?
- Can I drink coffee while taking Bactrim?
- Is it safe to take Bactrim with my antihypertensive medication?
- What should I do if I develop a rash?
- Does Bactrim affect blood sugar levels?
- Can I use Bactrim for a cold?
- Will Bactrim interact with my herbal supplements?
- Is Bactrim safe for breastfeeding mothers?
- Glossary
- Disclaimer
- Bactrim Properties
- Bactrim Drug Class
- Bactrim Connected Conditions
- How to order Bactrim from our Pharmacy
- Reviews
- Write your review
Bactrim (Trimethoprim) Buyer and Patient Handbook in Singapore
What is Bactrim?
Bactrim is a prescription-only antibiotic that contains trimethoprim (combined with sulfamethoxazole) and is used to treat a range of bacterial infections. It belongs to the sulfonamide class and is approved by the Singapore Health Sciences Authority (HSA). The medication is supplied as oral tablets.
Who Should Use Bactrim?
- Adults with confirmed or strongly suspected urinary-tract, respiratory, or gastrointestinal bacterial infections.
- Patients diagnosed with Pneumocystis Pneumonia prophylaxis.
- Individuals for whom sulfonamide antibiotics are appropriate and who have no known hypersensitivity to sulfa drugs.
How Does It Work?
Bactrim blocks two sequential steps in bacterial folic-acid synthesis: trimethoprim inhibits dihydrofolate reductase, while sulfamethoxazole blocks dihydropteroate synthase. By halting folate production, the drug prevents bacterial DNA replication and cell division. The result is a bacteriostatic effect that allows the immune system to clear the infection. Abuse potential is negligible, but inappropriate use can foster resistance.
Why Choose Bactrim?
- Broad-spectrum coverage: effective against many gram-positive and gram-negative bacteria.
- Fixed-dose convenience: two agents in one tablet simplify dosing compared with separate drugs.
- Cost-effective: widely available in Singapore, with generic trimethoprim-sulfamethoxazole alternatives offering similar efficacy at lower price. (Off-label uses such as Acne or certain dermatologic conditions should only be considered after professional consultation.)
Dosage, Administration, Lifestyle and Dietary Recommendations
Recommended Dosage
- Standard adult dose: 400 mg trimethoprim / 80 mg sulfamethoxazole once daily (single-strength tablet).
- Severe infection dose: 800 mg trimethoprim / 160 mg sulfamethoxazole twice daily (double-strength tablet).
How to Take
- Swallow tablets whole with a full glass of water.
- Can be taken with or without food; taking with food may reduce mild stomach upset.
Missed Dose
- If you remember within 4 hours, take the missed tablet.
- If more than 4 hours have passed, skip it and resume the regular schedule-do not double-dose.
Overdose
- Seek immediate medical help if you suspect an overdose.
- Symptoms may include Nausea, Vomiting, dizziness, or Seizures.
Special Populations
- Elderly: Monitor kidney function; dose adjustment may be needed.
- Children: Not recommended for infants <2 months; pediatric dosing follows weight-based guidelines (consult a clinician).
- Renal impairment: Reduce dose or extend dosing interval based on creatinine clearance.
Lifestyle & Diet
- Avoid excessive alcohol while on therapy; it can increase the risk of gastrointestinal irritation.
- Stay hydrated to help prevent crystalluria (urine deposits).
- Grapefruit juice does not significantly affect Bactrim, but maintain a balanced diet.
Precautions and Warnings
- Verify no allergy to sulfonamides or trimethoprim.
- Use caution in patients with renal or hepatic disease.
- May cause photosensitivity; use sunscreen and protective clothing outdoors.
- Monitor complete blood count during prolonged therapy, as bone-marrow suppression can occur.
Drug Interactions
| Drug Class / Example | Risk | Action |
|---|---|---|
| Warfarin | ↑ INR, bleeding | Monitor INR closely |
| Methotrexate | ↑ toxicity | Adjust methotrexate dose or avoid |
| Oral contraceptives | ↓ efficacy | Use backup contraception |
Potential Side Effects
Common Side Effects
- Nausea, mild vomiting
- Diarrhea or abdominal cramps
- Skin rash or mild itching
Less Common Side Effects
- Headache, dizziness
- Elevated liver enzymes
- Photosensitivity reactions
Serious Side Effects
- Severe rash (Stevens-Johnson syndrome) - seek urgent care
- Blood disorders (e.g., anemia, neutropenia) - stop drug and consult a doctor
- Acute kidney injury - immediate medical evaluation required
Who Should Avoid This Medication?
- Patients with known sulfonamide allergy.
- Individuals with severe renal or hepatic impairment without dose adjustment.
- Pregnant women in the first trimester (unless benefits outweigh risks).
- Patients with a history of severe bone-marrow suppression.
Storage Instructions
- Keep tablets in the original container, tightly closed.
- Store at ≤ 25 °C (77 °F); avoid excess heat and moisture.
- Keep out of reach of children and pets.
Bactrim Alternatives
| Name | Class | Key Difference |
|---|---|---|
| Generic Trimethoprim-Sulfamethoxazole | Sulfonamide | Same efficacy, lower cost |
| Amoxicillin-Clavulanate | Penicillin combo | Different spectrum; not cross-reactive |
| Doxycycline | Tetracycline | Useful for atypical pathogens, no sulfa |
Frequently Asked Questions
How long does a typical Bactrim course last?
A standard infection is treated for 7-14 days, but the exact duration depends on the infection type and clinical response.
Can I drink coffee while taking Bactrim?
Yes, moderate coffee intake does not interfere with the drug’s effectiveness.
Is it safe to take Bactrim with my antihypertensive medication?
Generally safe, but if you’re on ACE inhibitors or diuretics, monitor kidney function and electrolytes.
What should I do if I develop a rash?
Stop the medication and contact a healthcare professional promptly; a rash could signal a serious allergic reaction.
Does Bactrim affect blood sugar levels?
It may cause hypoglycemia in diabetic patients; monitor glucose levels closely.
Can I use Bactrim for a cold?
No. Bactrim targets bacterial infections; it is ineffective against viral colds.
Will Bactrim interact with my herbal supplements?
Certain herbs (e.g., St. John’s wort) can affect liver enzymes and alter drug levels; discuss all supplements with your clinician.
Is Bactrim safe for breastfeeding mothers?
Trimethoprim-sulfamethoxazole passes into breast milk in small amounts; weigh the benefits against potential infant exposure.
Glossary
- Folic-acid synthesis: A bacterial pathway needed for DNA creation; blocking it stops bacterial growth.
- Sulfonamide: A class of antibiotics that inhibit an early step in folic-acid production.
- Photosensitivity: Increased skin sensitivity to sunlight, leading to easy sunburn.
Disclaimer
The information provided here is for general educational purposes only and does not substitute professional medical advice. Bactrim should only be used under the guidance of a qualified healthcare provider. Off-label uses require a clinician’s assessment. Our service offers a convenient platform to obtain medicines approved in Singapore; it does not dispense prescriptions or guarantee clinical outcomes. Always consult a doctor or pharmacist before starting, stopping, or modifying any medication.
Bactrim Properties
- Original Manufacturer: Roche
- Clinical use: Antibiotic for urinary tract and respiratory infections
- Spectrum of activity: Narrow-spectrum
- Mechanism of action: Inhibits bacterial dihydrofolate reductase
- Classification: Sulfonamide
- Recommended Dosage: 100 mg to 200 mg twice daily
- Basic Side Effects: nausea, rash, diarrhea
- Moderate Side Effects: vomiting, dizziness, abdominal pain
- Serious Side Effects: allergic reactions, liver damage, anemia
Bactrim Drug Class
Bactrim Connected Conditions
How to order Bactrim from our Pharmacy
To order Bactrim | Trimethoprim on our online pharmacy, all you need to do is select the required dosage and quantity of pills above. The cost of the selected pack will appear automatically. Next, add the chosen amount to your cart by clicking the Add to Cart button. You can either continue shopping for more medications or head to the checkout. At the Checkout, finalize your purchase through our secure payment gateway.
Bactrim / Trimethoprim pills are made using high-quality generic ingredients and are subject to strict quality control in line with WHO and Health Sciences Authority (HSA) standards. However, please note that Bactrim pills are dispatched from outside Singapore due to prescriptions issued overseas.
Disclaimer: The content on this website is provided solely for informational purposes and is not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions or concerns regarding your health, and never disregard or delay seeking professional advice based on the information presented here. Use of this website does not create a doctor-patient relationship, and in the event of a medical emergency, please contact your local emergency services immediately. Our website assumes no responsibility or liability for any errors or omissions in the content provided.
Reviews
Day 3 on Bactrim for a stubborn UTI. It's finally starting to work, the burning feeling is almost gone. But wow, the nausea is no joke. Took my first dose on an empty stomach and nearly threw up. Pro tip: eat a small biscuit or something first. Also feeling super tired, like I could sleep for 12 hours.
Doctor prescribed this for a skin infection. Only been two days and I'm already getting a weird rash on my arms. Not sure if it's related but I'm stopping and calling the clinic tomorrow. Also got a bit dizzy after taking it. Maybe it's too strong for me.
I've been on Bactrim DS for recurrent sinus infections for about a year now. It's the only thing that clears it up properly. The key is to drink a TON of water, otherwise I get these awful headaches. I also take it right after lunch, never in the morning on an empty stomach. Sun sensitivity is real though, got a nasty burn last month even with sunscreen.
Been using Bactrim for my chronic bronchitis flares for 2 years. It works, but my mouth feels like a desert. I chew gum constantly. Another thing, my potassium levels dropped last time, so now I eat more bananas and avocados while I'm on it. It's a hassle but better than being hospitalized.
This medication is a lifesaver for my skin condition, but it messed up my gut. Had to start taking a strong probiotic (the refrigerated kind) two hours after each dose. Makes a huge difference. Without it, I'd be dealing with bloating and discomfort for weeks after finishing the course.
I take the 400/80mg pills for UTIs. I always get the yeast infection after, without fail. So now I ask my doc for a fluconazole pill to have on standby for the last day of Bactrim. Saves me a lot of trouble. The antibiotic itself works fast, maybe 36 hours and I'm good.
It cleared my MRSA infection when nothing else would, which I'm grateful for. But it gave me this awful metallic taste in my mouth that made eating anything a chore. Drank a lot of lemon water to try and cut through it. Also felt a bit jittery, like I'd had too much coffee.
My son has been on Bactrim for ear infections since he was little. We crush the pill and mix it with a tiny bit of chocolate syrup - it's the only way he'll take it. We have to watch him for rashes though, and he always gets a bit of diarrhea towards the end of the course. Pedialyte is a must.