Dytan-CS Side Effects
Generic Name: carbetapentane / diphenhydramine / phenylephrine
Note: This page contains information about the side effects of carbetapentane / diphenhydramine / phenylephrine. Some of the dosage forms included on this document may not apply to the brand name Dytan-CS.
Not all side effects for Dytan-CS may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.
For the Consumer
Applies to carbetapentane / diphenhydramine / phenylephrine: suspension, 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 / diphenhydramine / phenylephrine:
Constipation; diarrhea; dizziness; drowsiness; excitability; headache; loss of appetite; nausea; nervousness or anxiety; trouble sleeping; upset stomach; vomiting; weakness.
Severe allergic reactions (rash; hives; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); difficulty urinating or inability to urinate; fast or irregular heartbeat; hallucinations; seizures; severe dizziness, lightheadedness, or headache; tremor; trouble sleeping; vision changes.
For Healthcare Professionals
Applies to carbetapentane / diphenhydramine / phenylephrine: oral suspension extended release, oral tablet chewable extended release, oral tablet extended release
Cardiovascular side effects have included hypotension, palpitations, tachycardia, and extrasystoles.[Ref]
Hematologic side effects have included hemolytic anemia, thrombocytopenia, and agranulocytosis.[Ref]
Nervous system side effects have included sedation, sleepiness, dizziness, disturbed coordination, fatigue, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, euphoria, paresthesias, vertigo, tinnitus, acute labyrinthitis, headache, neuritis, and convulsions,[Ref]
Ocular side effects have included diplopia and blurred vision.[Ref]
Gastrointestinal side effects have included epigastric distress, anorexia, nausea, vomiting, diarrhea, and constipation.[Ref]
Genitourinary side effects have included urinary frequency, difficult urination, urinary retention, and early menses.[Ref]
Respiratory side effects have included thickening of bronchial secretions, tightness of chest or throat, wheezing, and nasal stuffiness.[Ref]
General side effects have included excessive perspiration, chills, and dryness of mouth, nose and throat.[Ref]
Hypersensitivity side effects have included urticaria, drug rash, anaphylactic shock, and photosensitivity.[Ref]
1. "Product Information. Dytan CS (carbetapentane / diphenhydramine / phenylephrine)." Hawthorn Pharmaceuticals, Madison, MS.
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