DY-G Liquid

Generic name:dyphylline and guaifenesin
Dosage form: liquid
Drug class:Antiasthmatic combinations

Medically reviewed by Drugs.com. Last updated on May 23, 2022.

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.

DY-G Liquid

NDC 60258-371-16
Rx Only

DESCRIPTION:
DY-G Liquid is a bronchodilator/expectorant combination supplied as a clear, mint flavored, alcohol fee, dye free and gluten free liquid for oral administration.

Each teaspoonful (5 mL) contains:
Dyphylline.....100 mg
Guaifenesin.....100 mg

Inactive ingredients: Glycerin, Propylene Glycol, Sorbitol, Sodium Saccharin, Sucrose, Spearmint Flavor, Purified Water.

Dyphylline is 7-(2,3-dihydroxypropyl)-theophylline, a white, extremely bitter, amorphous powder that is fully soluble in water and soluble in alcohol to the extent of 2 g/100 mL. Dyphylline forms a neutral solution that is stable in gastrointestinal fluids over a wide range of pH. It has the following chemical structure:






Guaifenesin is an expectorant which occurs as a white to slightly gray, crystalline powder, having a bitter taste. It may have a slight characteristic odor. It is soluble in water, alcohol, chloroform, glycerin, and propylene glycol. The chemical name is 3-(methoxyphenoxy)-1, 2-propanediol. It has the following chemical structure:

DY-G Liquid - Clinical Pharmacology

Dyphylline is a xanthine derivative with pharmacological actions similar to theophylline and other members of this class of drugs. Its primary action is that of bronchodilation, but it also exhibits peripheral vasodilatory and other smooth muscle relaxant activity to lesser degree. The bronchodilatory action of dyphylline, as with other xanthines, is thought to be mediated through competitive inhibition of phosphodiesterase with a resulting increase in cyclic AMP prod