Methapyrilene is an antihistamine and anticholinergic of the pyridine chemical class which was developed in the early 1950s. It was sold under the trade names Co-Pyronil and Histadyl EC. It has relatively strong sedative effects, to the extent that its primary use was as a medication for insomnia rather than for its antihistamine action. Together with scopolamine, it was the main ingredient in Sominex, Nytol, and Sleep-Eze. It also provided the sedative component of Excedrin PM. Manufacturers voluntarily withdrew methapyrilineb drug products from the market in May and June 1979, when methapyrilene was demonstrated to cause liver cancer in rats when given chronically.

Diethylene glycol monomethyl ether is a ether-alcohol derivative. The ether being relatively unreactive. Flammable and/or toxic gases are generated by the combination of alcohols with alkali metals, nitrides, and strong reducing agents. They react with oxoacids and carboxylic acids to form esters plus water. Oxidizing agents convert alcohols to aldehydes or ketones. Alcohols exhibit both weak acid and weak base behavior. They may initiate the polymerization of isocyanates and epoxides. Diethylene glycol monomethyl ether (DEGME) is sold by Dow under the tradename Methyl CARBITOL™ solvent. DEGME is an ethylene-series or E-series glycol ether. It is primarily used as a de-icing additive for aviation fuel.

Monostearyl fumarate (sodium stearyl fumarate) is a lubricant for use in tablet formulation, it can be used as a taste-masking agent in orally disintegrating tablets. It is a conditioning and stabilizing agent.

Ethyl maleate is supposed to be a toxic agent. Its administration induced acute aflatoxicosis in goats. Ethyl maleate is also used as a cross-linking agent for the synthesis of polymers.