Phencarb GG Side Effects
Generic Name: carbetapentane / guaifenesin / phenylephrine
Note: This page contains side effects data for the generic drug carbetapentane / guaifenesin / phenylephrine. It is possible that some of the dosage forms included below may not apply to the brand name Phencarb GG.
It is possible that some side effects of Phencarb GG may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.
For the Consumer
Applies to carbetapentane / guaifenesin / phenylephrine: sustained-release tablets
Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Seek medical attention right away if any of these SEVERE side effects occur while taking carbetapentane / guaifenesin / phenylephrine:
Diarrhea; dizziness; drowsiness; excitability; headache; irritability; nausea; stomach upset; trouble sleeping.
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating; fast, slow, or irregular heartbeat; fever; hallucinations; mental or mood changes (eg, anxiety, nervousness); paleness; seizures; severe or persistent dizziness, lightheadedness, or headache; tremor.
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.[Ref]
Cardiovascular side effects have included arrhythmias and hypotension with cardiovascular collapse.[Ref]
Gastrointestinal side effects have included nausea and vomiting.[Ref]
Psychiatric side effects have included fear, anxiety, and hallucinations.[Ref]
Respiratory side effects have included respiratory difficulty.[Ref]
Genitourinary side effects have included dysuria.[Ref]
General side effects have included weakness and pallor.[Ref]
1. "Product Information. Phencarb GG (carbetapentane / guaifenesin / phenylephrine)." Boca Pharmacal Inc, Coconut Creek, FL.
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