Each teaspoon (5 mL) of Promethazine HCl Syrup Plain contains 6.25 mg promethazine HCl in a flavored syrup base with a pH between 4.7 and 5.2. Alcohol 7%. The inactive ingredients present are artificial and natural flavors, citric acid, D&C Red 33, D&C Yellow 10, FD&C Blue 1, FD&C Yellow 6, glycerin, saccharin sodium, sodium benzoate, sodium citrate, sodium propionate, water, and other ingredients.

Each rectal suppository contains 12.5 mg or 25 mg promethazine HCl with ascorbyl palmitate, silicon dioxide, white wax, and cocoa butter. Promethazine hydrochloride suppositories are for rectal administration only.

Promethazine hydrochloride is a racemic compound.

Each tablet of Phenergan contains 12.5 mg, 25 mg, or 50 mg promethazine HCl. The inactive ingredients present are lactose, magnesium stearate, and methylcellulose. Each dosage strength also contains the following:

Promethazine hydrochloride (promethazine hydrochloride injection) injection, is a sterile, pyrogen-free solution for deep intramuscular or intravenous administration. Promethazine hydrochloride (promethazine hydrochloride injection) (10H-phenothiazine-10-ethanamine, N, N, ?-trimethyl-, monohydrochloride, ()-) is a racemic compound and has the following structural formula:

Each 5 mL (one teaspoonful), for oral administration contains: Promethazine hydrochloride 6.25 mg; phenylephrine hydrochloride 5 mg, Alcohol 7%.

Each teaspoon (5 mL) of Promethazine HCl and Dextromethorphan Hydrobromide (promethazine and dextromethorphan) Syrup contains 6.25 mg promethazine HCl and 15 mg dextromethorphan hydrobromide in a flavored syrup base with a pH between 4.7 and 5.2. Alcohol 7%. The inactive ingredients present are artificial and natural flavors, citric acid, D&C Yellow 10, FD&C Yellow 6, glycerin, saccharin sodium, sodium benzoate, sodium citrate, sodium propionate, water, and other ingredients.

This product is available in concentration providing 25 mg each of meperidine hydrochloride and promethazine hydrochloride per mL with 0.1 mg edetate disodium, 0.04 mg calcium chloride, and not more than 0.75 mg sodium formaldehyde sulfoxylate, 0.25 mg sodium metabisulfite, and 5 mg phenol with sodium acetate buffer.

FOR COMPLETE PRESCRIBING INFORMATION, REFER TO THE INDIVIDUAL DRUG MONOGRAPHS CODEINE PHOSPHATE; PROMETHAZINE HYDROCHLORIDE.