What it's used for
Methenamine mandelate is used to suppress or eliminate bacteria in the urine associated with chronic urinary tract infections such as pyelonephritis and cystitis. It is particularly suitable for long-term therapy.
Source: U.S. FDA-approved prescribing information (openFDA).
Typical dosing
The average adult dose is 4 grams a day taken as one 1000 mg tablet or two 500 mg tablets after each meal and at bedtime. Children aged 6 to 12 years should receive half the adult dose, which is one 500 mg tablet 4 times a day.
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
Methenamine mandelate should be avoided in patients with gout or a predisposition to uric acid stones because it may cause crystals in the urine.
Common side effects
Gastrointestinal disturbances such as nausea and stomach upset, generalized skin rash, and painful or difficult urination may occur occasionally.
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 everything else medications covered at $0 with an active Tab membership.