Sunex Overdosage

Anti-histamine overdosage reactions may vary from central nervous system depression to stimulation. Stimulation is particularly likely in children. Atropine-like signs and symptoms – dry mouth; fixed, dilated pupils; flushing and gastrointestinal symptoms may also occur. If vomiting has not occurred spontaneously, the patient should be induced to vomit. This is best done by having the patient drink a glass of water or milk after which, patient should be made to gag.
Precaution against aspiration must be taken especially in infants and children. If vomiting is unsuccessful, gastric lavage is indicated within 3 hours after ingestion and even later if large amounts of milk or cream were given before hand. Isotonic or ½ isotonic saline is the lavage solution of choice.
Saline cathartics, as milk of magnesia, by osmosis draw water into bowel and therefore are valuable for their action in rapid dilution of bowel content. Vasopressors may be used to treat hypotension. Stimulants should not be used.