What side effects may I notice from receiving Guaifenesin; Potassium Guaiacolsulfonate?
Side effects that you should report to your prescriber or health care professional as soon as possible: Rare (more likely with excessive doses of guaifenesin): • side pain or back pain that extends to the groin (signs of kidney stones) Side effects that usually do not require medical attention (report to your prescriber or health care professional if they continue or are bothersome): Uncommon: • diarrhea • drowsiness or dizziness • headache • nausea or vomiting • stomach pain • rash