Tussin Expectorant Side Effects

Generic Name: guaifenesin

Note: This page contains side effects data for the generic drug guaifenesin. It is possible that some of the dosage forms included below may not apply to the brand name Tussin Expectorant.

For the Consumer

Applies to guaifenesin: oral capsule, oral capsule extended release, oral elixir, oral liquid, oral packet, oral solution, oral syrup, oral tablet, oral tablet extended release

As well as its needed effects, guaifenesin (the active ingredient contained in Tussin Expectorant) may cause unwanted side effects that require medical attention.

Minor Side Effects

Some guaifenesin side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

• Diarrhea
• dizziness
• headache
• hives
• nausea or vomiting
• skin rash
• stomach pain

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 Tussin Expectorant) has been generally well tolerated.^[Ref]

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.^[Ref]

Nervous system

Nervous system side effects have occasionally included dizziness and headache.^[Ref]

Dermatologic

Dermatologic side effects have included rare reports of rash.^[Ref]

Hypersensitivity

Hypersensitivity side effects have included a report of an anaphylactic reaction.^[Ref]

It is possible that some side effects of Tussin Expectorant may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

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