Methylphen Tablets

Generic name: hyoscyamine sulfate, methenamine, phenyl salicylate, benzoic acid and methylene blue
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. For further information about unapproved drugs, click here.

DESCRIPTION:

Each tablet for oral administration contains:
Hyoscyamine Sulfate . . . . . . . . . . . . . 0.12 mg
Methenamine . . . . . . . . . . . . . . . . . . . 81.6 mg
Phenyl Salicylate . . . . . . . . . . . . . . . . 36.2 mg
Benzoic Acid . . . . . . . . . . . . . . . . . . . . 9.0 mg
Methylene Blue . . . . . . . . . . . . . . . . . . 10.8 mg

Inactive Ingredients: Cetyl Alcohol, Coarse Rice Starch, Crospovidone, Ethylcellulose, FDC Blue 2 Aluminum Lake, Hydroxypropyl Methylcellulose, Magnesium Stearate, Microcrystalline Cellulose, Polyethylene Glycol, Polysorbate, Silicon Dioxide, Sodium Lauryl Sulfate, Sodium Starch Glycolate, Stearic Acid, Titanium Dioxide, Triacetin, Yellow Iron Oxide.

Hyoscyamine Sulfate. [620-61-1] [3(S)-endo]-_-(Hydroxymethyl)-benzeneacetic acid 8-methyl-8-azabicyclo[3.2.1]oct-3-yl ester sulfate(2:1)(salt); 1_H,5_H-tropan-3_-ol(-)-tropate (ester) sulfate(2:1)(salt); 3_-tropanyl S-(-)-tropate; I-tropic acid ester with tropine; I-tropine tropate. C34H48N2O10S. Hyoscyamine Sulfate is an alkaloid of belladonna. Exists as a white crystalline powder. Its solutions are alkaline to litmus. Affected by light, it is slightly soluble in water; freely soluble in alcohol; sparingly soluble in ether.

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. C6H12N4; 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.

Phenyl Salicylate. [118-55-8] 2-Hydroxybenzoic acid phenyl ester; Salol. C13H10O3; mol wt 214.22, C 72.89%, H 4.71%, O 22.41%. Made by the action of phosphorus oxy-chloride on a mixture of phenol and salicyli