Symptoms: Symptoms of this product overdosages are not clear. However, symptoms of antihistamines and nasal decongestant overdosage may cause vary effects.
Central nervous system: drowsiness, dizziness, ataxia, tinnitus, blurred vision.
Children often manifest CNS stimulation and may have hallucinations, toxic psychosis, delirium tremens, excitement, ataxia, incoordination, muscle twitching, athetosis, hyperthermia, cyanosis, convulsion, and hyperreflexia followed by postictal depression and cardiorespiratory arrest.
Cardiovascular system: hypotension, hypertension, bradycardia, drowsiness, rebound hypotension, anticholinergic effects e.g. dilated pupils, flushing, dry mouth, ECG changes (less common), shock-like syndrome.
Treatment: Protect against aspiration, especially in infants and children. Administer activated charcoal as a slurry with water and a cathartic to minimize absorption. Correct acidosis and electrolyte imbalances. Do not induce emesis in unconscious patients. Gastric lavage may be considered within 3 hours after ingestion and even later if large amounts were taken. Continue supportive treatment as needed.
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