What it's used for
Sulfamethoxazole and trimethoprim is used to treat or prevent infections proven or strongly suspected to be caused by susceptible bacteria.
Source: U.S. FDA-approved prescribing information (openFDA).
Typical dosing
For urinary tract infections in adults, the usual dosage is 1 double-strength tablet or 2 regular tablets every 12 hours for 10 to 14 days, and it is contraindicated in children under 2 months old.
Dosing shown here is the general FDA-labeled range. Your prescribing clinician determines the exact dose, form, and schedule for you — this is not a substitute for medical advice.
Boxed warning / key safety info
Exposure to this medication during pregnancy may be associated with an increased risk of congenital malformations.
Common side effects
The most common side effects include gastrointestinal disturbances like nausea and vomiting, as well as allergic skin reactions such as rash and hives.
Covered strengths on the Tab $0 list
Covered at $0 with an active Tab membership when filled at a participating pharmacy nationwide or through mail order. A licensed clinician must prescribe the medication.
Related medications
Other antibiotics & antivirals medications covered at $0 with an active Tab membership.