guaifenesin/codeine - oral, Cheracol, Robitussin A-C (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

DRUG INTERACTIONS: Naltrexone (Riva) decreases the effect of codeine in the body, therefore codeine must not be used with naltrexone.

Any other medications that increase drowsiness should be used with caution with guaifenesin and codeine.

PREGNANCY: There are no adequate studies with guaifenesin and codeine to determine its safety and effectiveness in pregnant women.

NURSING MOTHERS: Guaifenesin with codeine is excreted in breast milk; therefore, it must be used with caution in nursing mothers.

SIDE EFFECTS: Side effects of guaifenesin with codeine are constipation, nausea, vomiting, sedation, orthostatic hypotension (low blood pressure upon standing), irregular heartbeats, decreased urination, drowsiness, and headache.


Codeine/guaifenesin - Prescribing Information

Medscape Drug Reference. Codeine/guaifenesin

Micromedex Drug Information

Medically Reviewed by a Doctor on 4/16/2014

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Pill Finder Tool

Need help identifying pills and medications?
Use the pill identifier tool on RxList.

Back to Medications Index