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.

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:

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

Cardiovascular side effects have included hypotension, palpitations, tachycardia, and extrasystoles.^[Ref]

Hematologic

Hematologic side effects have included hemolytic anemia, thrombocytopenia, and agranulocytosis.^[Ref]

Nervous system

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

Ocular side effects have included diplopia and blurred vision.^[Ref]

Gastrointestinal

Gastrointestinal side effects have included epigastric distress, anorexia, nausea, vomiting, diarrhea, and constipation.^[Ref]

Genitourinary

Genitourinary side effects have included urinary frequency, difficult urination, urinary retention, and early menses.^[Ref]

Respiratory

Respiratory side effects have included thickening of bronchial secretions, tightness of chest or throat, wheezing, and nasal stuffiness.^[Ref]

General

General side effects have included excessive perspiration, chills, and dryness of mouth, nose and throat.^[Ref]

Hypersensitivity

Hypersensitivity side effects have included urticaria, drug rash, anaphylactic shock, and photosensitivity.^[Ref]

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.

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