UroAv-81

Generic name:methenamine, sodium phosphate, monobasic, anhydrous, phenyl salicylate, methylene blue and hyoscyamine sulfate
Dosage form: tablet
Drug class:Urinary antispasmodics

Medically reviewed by Drugs.com. Last updated on Dec 22, 2021.

Disclaimer: This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA. Read further information about unapproved drugs.

Rx Only

UroAv-81 Description

UroAv-81 Tablets for oral administration.

Each tablet contains:
Methenamine 81 mg
Sodium Phosphate Monobasic 40.8 mg
Phenyl Salicylate 32.4 mg
Methylene Blue 10.8 mg
Hyoscyamine Sulfate 0.12 mg

Inactive ingredients: Lactose, Polyethylene Glycol, Crospovidone, Magnesium Stearate, Colloidal Silicon Dioxide, FD&C Blue # 1.

METHENAMINE. [100-97-0] 1,3,5,7-Tetraazatricyclo [3.3.1.-1 3,7] decane; hexamethylenetetramine; HMT; HMTA; hexamine; 1,3,5,7-tetraazaadamantane hexamethylenemine; Uritone; Urotropin. C 6H 12N 4; mol wt 140.19; C 51.40%, H 8.63%, N 39.96%. Methenamine (hexamethylenetetramine) 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.

SODIUM PHOSPHATE MONOBASIC. [7558-80-7] Phosphoric acid sodium salt (1:1); Sodium biphosphate; sodium dihydrogen phosphate; acid sodium phosphate; monosodium orthophosphate; primary sodium phosphate; H 2NaO 4P; mol wt 119.98, H 1.68%, Na 19.16%, O 53.34%, P 25.82%. Monohydrate, white, odorless slightly deliquesce crystals or granules. At 100° C loses all its water; when ignited it converts to metaphosphate. It is freely soluble in water and practically insoluble in alcohol. The aqueous solution is acid. pH of 0.1 molar aqueous solution at 25° C: 4.5.

PHENYL SALICYLATE. [118-55-8] 2-Hydroxybenzoic acid phenyl ester; Salol. C 13H 10O 3; mol wt 214.22, C 72.89%, H 4.71%, O 22.41%. Made by the a