Darpaz

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

Medically reviewed by Drugs.com. Last updated on Nov 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:

Darpaz
Rx Only
Each tablet for oral administration contains:
Hyoscyamine Sulfate – 0.12 mg
Methenamine – 81.0 mg
Phenyl Salicylate – 32.4 mg
Sodium Biphosphate – 40.8 mg
Methylene Blue – 10.8 mg

Inactive Ingredients: Cetyl Alcohol, Coarse Rice Starch, Crospovidone, Ethylcellulose, FD&C Blue #2 Aluminum Lake, FD&C Blue #1 Aluminum Lake, Hydroxpropyl Methylcellulose, Magnesium Stearate, Microcrystalline Cellulose, Polyethylene Glycol, Polyvinyl Alcohol, Silicone Dioxide, Sodium Lauryl Sulfate, Sodium Starch Glycolate, Stearic Acid, Talc, Titanium Dioxide.

Hyoscyamine Sulfate
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
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
Made by actions of phosphorus oxy-chloride on a mixture of phenol and salicylic acid. Phenyl Salicylate exists as white crystals with a melting point of 41°-43°C. It is very slightly soluble in water and freely soluble in alcohol.

Sodium Biphosphate
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.