Each tablet contains:
| Methenamine, USP | 81.6 mg |
| Monobasic Sodium Phosphate, USP | 40.8 mg |
| Methylene Blue, USP | 10.8 mg |
| Hyoscyamine Sulfate, USP | 0.12 mg |
Inactive Ingredients include: microcrystalline cellulose, NF, mannitol, USP, croscarmellose sodium, NF, magnesium stearate, NF and lake blend blue.
HYOSCYAMINE SULFATE is an alkaloid of belladonna. Exists as a white crystalline powder. Affected by light It is very soluble in water; freely soluble in alcohol; practically insoluble in ether.
METHENAMINE exists as colorless, lustrous crystals or white crystalline powder. Its solutions are alkaline to litmus. Freely soluble in water; soluble in alcohol and in chloroform.
METHYLENE BLUE exists as dark green crystals. It is soluble in water and in chloroform; sparingly soluble in alcohol.
MONOBASIC SODIUM PHOSPHATE exists as a white crystalline powder. Its solutions are acidic to litmus. It is freely soluble in water and practically insoluble in alcohol.