COPD Side Effects
Generic name: dyphylline / guaifenesin
Note: This document contains side effect information about dyphylline / guaifenesin. Some of the dosage forms listed on this page may not apply to the brand name COPD.
Some side effects of COPD 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 dyphylline / guaifenesin: capsules, elixir, liquid, syrup, 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 dyphylline / guaifenesin:
Headache; nausea; upset stomach.
Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blood in the urine; bloody vomit; diarrhea; dizziness; excitability; fast breathing; fast/irregular heartbeat; flushing; increased thirst or urination; irritability; muscle twitching; pounding in the chest; restlessness; seizures; stomach pain; trouble sleeping; vomiting.
For Healthcare Professionals
Applies to dyphylline / guaifenesin: oral capsule, oral liquid, oral syrup, oral tablet
Cardiovascular side effects have included palpitations, tachycardia, extrasystoles, flushing, hypotension, circulatory failure, and ventricular arrhythmias.
Endocrine side effects have included hyperglycemia and inappropriate ADH syndrome.
Gastrointestinal side effects have included nausea, vomiting, epigastric pain, hematemesis and diarrhea.
Nervous system side effects have included headache, irritability, restlessness, insomnia, hyperexcitability, agitation, muscle twitching, and generalized clonic and tonic convulsions.
Renal side effects have included albuminuria, diuresis and both gross and microscopic hematuria.
More COPD resources
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