Isometheptene, Caffeine, and Acetaminophen Tablets
Dosage form: tablet
Drug class:Analgesic combinations
Medically reviewed by Drugs.com. Last updated on Oct 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.
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Hepatotoxicity
Acetaminophen has been associated with cases of acute liver failure, at times resulting in liver transplant and death. Most of the cases of liver injury are associated with the use of acetaminophen at doses that exceed 4,000 milligrams per day, and often in combination with other acetaminophen-containing products.
Isometheptene, Caffeine, and Acetaminophen Tablets Description
Each Isometheptene Mucate, Caffeine, and Acetaminophen Caplet contains:
Isometheptene Mucate ..... 65 mg
Caffeine ..... 20 mg
Acetaminophen ..... 325 mg
Isometheptene Mucate is a white crystalline powder having a characteristic aromatic odor and bitter taste. It is an unsaturated aliphatic amine with sympathomimetic properties. Isometheptene mucate has the following structural formula:

Caffeine is 1H-Purine-2,6-dione, 3,7-dyhydro-1,3,7-trimethyl-. It has the following structural formula:

Acetaminophen, a non-salicylate, occurs as a white, odorless, crystalline powder, possessing a slightly bitter taste. Acetaminophen is Acetamide, N-(4-hydroxyphenyl)-. It has the following structural formula:

Inactive ingredients include colloidal silicon dioxide, crospovidone polyplasdone, magnesium stearate, microcrystalline cellulose, povidone, pre..