Mucinex (guaifenesin) side effects: Like any medication, there are side effects that can occur with the use of mucinex (guaifenesin). Side effect do not always occur in everyone that takes a medication. Most common with Mucinex (guaifenesin) is nausea and vomiting. Can be as serious as facial swelling: lips, tongue. Always check with your prescribing doctor and pharmacist.
Answered 11/24/2019
5.8k views
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
4 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question