Guaifenex LA Side Effects

Generic name: guaifenesin

Note: This document contains side effect information about guaifenesin. Some of the dosage forms listed on this page may not apply to the brand name Guaifenex LA.

Some side effects of Guaifenex LA may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

For the Consumer

Applies to guaifenesin: oral capsule, oral capsule extended release, oral granule, oral liquid, oral solution, oral tablet, oral tablet extended release

Get emergency medical help if you have any of these signs of an allergic reaction while taking guaifenesin (the active ingredient contained in Guaifenex LA) hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Less serious side effects of guaifenesin may include:

• dizziness or headache,

• a rash, or

• nausea, vomiting, or stomach upset.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to guaifenesin: compounding powder, oral capsule, oral capsule extended release, oral granule, oral liquid, oral solution, oral tablet, oral tablet extended release

General

Guaifenesin (the active ingredient contained in Guaifenex LA) has been generally well tolerated.

Gastrointestinal

Gastrointestinal side effects have included stomach upset and vomiting with higher than recommended doses. Doses recommended for expectoration have rarely been associated with gastrointestinal upset.

Nervous system

Nervous system side effects have occasionally included dizziness and headache.

Dermatologic

Dermatologic side effects have included rare reports of rash.

Hypersensitivity

Hypersensitivity side effects have included a report of an anaphylactic reaction.

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