Phencarb GG Side Effects
Generic name: carbetapentane / guaifenesin / phenylephrine
Note: This document contains side effect information about carbetapentane / guaifenesin / phenylephrine. Some of the dosage forms listed on this page may not apply to the brand name Phencarb GG.
Some side effects of Phencarb GG 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 carbetapentane / guaifenesin / phenylephrine: oral liquid
Get emergency medical help if you have any of these signs of an allergic reaction while taking carbetapentane / guaifenesin / phenylephrine: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Stop using carbetapentane, guaifenesin, and phenylephrine and call your doctor at once if you have a serious side effect such as:
fast or pounding heartbeats;
confusion, hallucinations, unusual thoughts or behavior;
severe dizziness, anxiety, restless feeling, or nervousness;
urinating less than usual or not at all;
easy bruising or bleeding, unusual weakness, fever, chills, body aches, flu symptoms; or
dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, chest pain, shortness of breath, uneven heartbeats, seizure).
Less serious side effects of carbetapentane / guaifenesin / phenylephrine may include:
dizziness, drowsiness, headache, weakness;
dry mouth, nose, or throat, increased sweating or urination;
nausea, mild stomach pain;
sleep problems (insomnia); or
feeling restless or excited (especially in children).
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 carbetapentane / guaifenesin / phenylephrine: oral liquid, oral syrup, oral tablet, oral tablet extended release
Nervous system side effects have included nervousness, lightheadedness, excitability, restlessness, dizziness, tenseness, convulsions, CNS depression, and insomnia.
Cardiovascular side effects have included arrhythmias and hypotension with cardiovascular collapse.
Gastrointestinal side effects have included nausea and vomiting.
Psychiatric side effects have included fear, anxiety, and hallucinations.
Respiratory side effects have included respiratory difficulty.
Genitourinary side effects have included dysuria.
General side effects have included weakness and pallor.
More Phencarb GG resources
- Phencarb GG Concise Consumer Information (Cerner Multum)
- Aquatab C MedFacts Consumer Leaflet (Wolters Kluwer)
- Carbatab-12 sustained-release tablets MedFacts Consumer Leaflet (Wolters Kluwer)
- carbetapentane/guaifenesin/phenylephrine solution MedFacts Consumer Leaflet (Wolters Kluwer)
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