Bactrim 400/80 mg Tablets: Product and Price Information
Bactrim Product Details
| Medication | Bactrim 400/80 mg |
|---|---|
| Active ingredients | Sulfamethoxazole 400 mg and trimethoprim 80 mg |
| Generic name | Sulfamethoxazole-trimethoprim |
| Alternative abbreviations | SMX-TMP or TMP-SMX |
| Product type | Brand-name reference medication with FDA-approved generic equivalents |
| Drug class | Sulfonamide antibacterial combination |
| Dosage form | Oral tablet |
| Tablet strength | 400 mg sulfamethoxazole / 80 mg trimethoprim |
| Manufacturer | Provided by the assigned dispensing pharmacy |
| Country of manufacture | Provided for the available finished product |
| NDC | Provided for the available finished product |
| FDA status | FDA-approved generic sulfamethoxazole-trimethoprim 400/80 mg tablets are available in the United States |
| Prescription status | Prescription required |
The image represents a generic sulfamethoxazole-trimethoprim product. The assigned pharmacy confirms the manufacturer, tablet appearance, package, country of manufacture and NDC of the finished medication it can dispense.
Approximate Bactrim 400/80 mg Price
The table shows a current cash-price reference for generic sulfamethoxazole-trimethoprim 400/80 mg tablets. The assigned pharmacy confirms the prescribed quantity, available manufacturer and final charge.
| Product | Package | Approximate price | Per tablet |
|---|---|---|---|
| Generic Bactrim 400/80 mg | 90 tablets | $12.27 | $0.14 |
The final amount may vary by prescribed quantity, manufacturer, pharmacy, location, insurance or discount terms. The displayed generic price does not guarantee availability of original brand-name Bactrim.
Patients without a current prescription may select a $20 online medical consultation with Cody R. Christensen, DO, where available. The consultation does not guarantee a prescription. The clinician must determine whether the symptoms are consistent with a bacterial infection for which Bactrim is appropriate.
Prescription, medical and account information is handled according to the Sweetwater Medical Center Privacy Statement.
Bactrim 400/80 mg is a prescription antibacterial tablet containing 400 mg of sulfamethoxazole and 80 mg of trimethoprim. The two active ingredients interfere with consecutive stages of bacterial folate production, making the combination effective against selected susceptible organisms.
Bactrim should be used only for an infection proven or strongly suspected to be caused by susceptible bacteria. It does not treat influenza, the common cold or another viral illness, and it is not automatically appropriate for every urinary, respiratory, gastrointestinal or skin infection.
Patients researching Bactrim 400/80 mg online can review the confirmed strength, generic availability and current price reference before submitting a request. The exact product and quantity are determined from the prescription and the inventory of the assigned pharmacy.
Sweetwater Medical Center displays medication and price information and routes the request. It does not independently select the antibiotic, validate the prescription, guarantee inventory, dispense the tablets or ship the finished medication.
Bactrim Price Without Insurance and Generic Savings
The Bactrim price without insurance depends on whether the original brand or generic sulfamethoxazole-trimethoprim is dispensed, as well as the prescribed quantity, pharmacy and available discount terms. Generic tablets are generally much less expensive than the original branded product.
Patients comparing the generic Bactrim price should use the same strength and tablet count. A price for 10 or 20 tablets cannot be compared directly with a 90-tablet quotation by looking only at the total amount.
The package displayed above is a market price reference rather than a recommended treatment quantity. Antibiotic courses are prescribed according to the infection, patient characteristics and expected duration of therapy. A pharmacy will not dispense a larger amount simply because it provides a lower price per tablet.
How a Bactrim Prescription Is Processed
A patient seeking a Bactrim prescription online provides a destination ZIP code and submits an existing prescription, an eligible transfer request or information for an available medical consultation. The order system then assigns an eligible licensed pharmacy that can serve the patient’s location.
Select Bactrim 400/80 mg
Select the displayed tablet strength and the quantity authorized by the prescription.
Provide Prescription Information
Submit a current prescription, request an eligible transfer or select an available medical consultation.
An Eligible Pharmacy Is Assigned
The request is routed according to the destination, pharmacy licensing, service coverage and ability to process the antibiotic order.
The Pharmacy Confirms the Medication
The assigned pharmacy validates the prescription, identifies the available finished product, checks inventory and confirms the final price and dispensing options.
Bacterial Infections Treated With Bactrim
Bactrim is not selected solely by the location of an infection. A clinician considers the likely organism, local resistance patterns, allergy history, kidney function, other medicines and any available culture results.
The prescribing information for sulfamethoxazole-trimethoprim tablets includes use in selected patients with:
- Urinary tract infections caused by susceptible bacteria
- Acute exacerbations of chronic bronchitis in adults when the combination is appropriate
- Acute otitis media in eligible pediatric patients
- Shigellosis caused by susceptible organisms
- Traveler’s diarrhea caused by susceptible enterotoxigenic Escherichia coli
- Treatment or prevention of Pneumocystis jirovecii pneumonia in appropriate patients
These indications do not mean that Bactrim is the preferred first treatment in every case. For example, urinary symptoms can result from resistant bacteria, sexually transmitted infections, kidney stones, prostatitis or noninfectious bladder conditions. Testing or an in-person examination may be necessary before an antibiotic is selected.
Bactrim 400/80 mg Dosage and Administration
The number of tablets, dosing interval and treatment duration depend on the diagnosed infection. The standard-strength tablet contains 400 mg of sulfamethoxazole and 80 mg of trimethoprim, and a prescription may require more than one tablet per dose depending on the regimen.
Patients should follow the strength and schedule printed on the pharmacy label rather than copying a previous prescription. Treatment for a urinary tract infection is not necessarily the same as treatment for bronchitis, shigellosis or Pneumocystis pneumonia.
Using the Prescribed Course Correctly
- Take each dose at the scheduled time and space doses as directed.
- Do not double the next dose unless a clinician or pharmacist specifically instructs you to do so.
- Complete the prescribed course unless treatment is stopped because of a suspected serious reaction or medical advice.
- Do not save remaining tablets for a future infection or share them with another person.
Adequate hydration is generally recommended to support urine output and reduce the likelihood of crystals forming in the urine. Patients who have heart failure, advanced kidney disease or another fluid restriction should follow their clinician’s specific instructions.
Kidney Function, Potassium and Treatment Monitoring
Sulfamethoxazole and trimethoprim are cleared substantially through the kidneys. Reduced renal function can increase exposure to both ingredients, making dose adjustment or another antibiotic necessary. Severe renal impairment is a contraindication when kidney function cannot be adequately monitored.
Trimethoprim can raise potassium levels, including at commonly prescribed doses. The risk is higher in people with kidney impairment and in patients taking medicines that also increase potassium, such as certain treatments for high blood pressure or heart failure.
Depending on the patient and expected treatment duration, a clinician may monitor creatinine, potassium, sodium and blood-cell counts. Older adults and patients taking several interacting medicines may need closer observation.
Bactrim Side Effects and Serious Reactions
Nausea, loss of appetite and mild gastrointestinal discomfort can occur during treatment. Some patients also develop increased sensitivity to sunlight. These effects should be distinguished from signs of a serious sulfonamide reaction.
Rare reactions may affect the skin, blood cells, liver, lungs or kidneys. Stevens-Johnson syndrome, toxic epidermal necrolysis and DRESS can begin with a new rash, fever or flu-like symptoms before progressing.
A new rash during Bactrim treatment requires prompt medical advice because an initially limited skin reaction can become severe.
Urgent evaluation is appropriate for:
- Blistering or peeling skin
- Sores involving the mouth, lips or eyes
- Rash with fever, facial swelling or swollen lymph nodes
- Shortness of breath, chest pain or a new persistent cough
- Unusual bruising, bleeding, pallor or profound weakness
- Yellow skin or eyes, dark urine or severe abdominal symptoms
- Watery or bloody diarrhea accompanied by pain or fever
Contraindications and Drug Interactions
Bactrim should not be used by patients with a known hypersensitivity to trimethoprim or sulfonamide medicines. Other contraindications include previous immune thrombocytopenia caused by either ingredient, folate-deficiency megaloblastic anemia, marked liver damage and certain cases of severe renal insufficiency.
The combination is contraindicated with dofetilide and in infants younger than two months. Pregnancy and breastfeeding require individual assessment because both ingredients can affect folate metabolism and bilirubin handling.
Medication review is particularly important with:
- Warfarin and other treatments requiring coagulation monitoring
- Methotrexate, phenytoin, digoxin or cyclosporine
- ACE inhibitors and other medicines that can increase potassium
- Thiazide diuretics, especially in older adults
- Diabetes medicines that can contribute to low blood glucose
- Leucovorin during treatment of Pneumocystis jirovecii pneumonia
Patients should not stop an anticoagulant, heart medicine, seizure treatment or immunosuppressant on their own to begin Bactrim. The prescriber may choose additional monitoring, change a dose or select another antibiotic.
Antibiotic Resistance and Repeat Bactrim Use
Previous improvement with Bactrim does not establish that it is appropriate for a new infection. Bacteria can differ between episodes, and susceptibility patterns may change over time.
A request to buy Bactrim 400/80 mg online must therefore be supported by a valid prescription or an appropriate clinical assessment. Repeated antibiotic use without confirming the cause of symptoms can delay correct treatment and contribute to antimicrobial resistance.
Patients with recurring urinary or respiratory infections may need culture testing or evaluation for an underlying cause rather than repeated empirical courses of the same antibiotic.
Medical Disclaimer
This page provides general information about Bactrim 400/80 mg, generic sulfamethoxazole-trimethoprim and the pharmacy-order process. It does not diagnose an infection, determine bacterial susceptibility or select a dose and treatment duration for an individual patient.
An online consultation does not guarantee a prescription. Fever with flank pain, severe dehydration, confusion, difficulty breathing, rapidly spreading rash, blood in the urine or another worsening symptom may require urgent in-person evaluation.
Bactrim 400/80 mg Prescription and Price FAQ
How much does Bactrim 400/80 mg cost without insurance?
The cost depends on whether the brand or generic is dispensed, the tablet count, pharmacy and available discounts. The current generic price reference is shown in the upper table, while the assigned pharmacy confirms the final amount.
Can I get Bactrim online for a urinary tract infection?
An online evaluation may be available, but urinary symptoms do not automatically make Bactrim appropriate. The clinician considers the symptoms, health history, resistance patterns and whether testing or in-person care is needed.
Where can I order generic Bactrim 400/80 mg?
Use a secure prescription service that routes the request to an eligible licensed pharmacy. The assigned pharmacy identifies the available generic manufacturer and package.
Does Bactrim 400/80 mg require a prescription?
Yes. Bactrim and generic sulfamethoxazole-trimethoprim are prescription antibiotics in the United States.
Is generic Bactrim cheaper than the original brand?
Generic sulfamethoxazole-trimethoprim is usually considerably less expensive. The actual difference depends on the quantity, pharmacy, insurance coverage and whether the brand is specifically required.
Related Infection and Laboratory Information
These Sweetwater Medical Center resources provide additional information about laboratory testing, diagnosis and medication monitoring.
Medical References
DailyMed: Sulfamethoxazole and Trimethoprim Tablets Prescribing Information
Pharmacist Review of Bactrim Information
The medication information on this page, including Bactrim’s prescription status, 400/80 mg tablet strength, antibacterial indications, renal precautions, potassium risk, serious sulfonamide reactions, contraindications, interactions and antibiotic-resistance considerations, was reviewed by Jeffrey Collins, PharmD, Pharmacist — Wyoming Pharmacist License 3836; NPI 1255701884.
This review applies to the published medication information and does not approve an individual prescription or order. The pharmacy assigned during the order process remains responsible for validating the prescription, identifying the available finished product, confirming the quantity, inventory and final price, and dispensing and shipping the medication.
Last pharmacist review: 08.05.2026.