Overdosage leads to drowsiness, agitation, nausea and anticholinergic effects like tachycardia (high heart rate), dry mouth, blurred vision, glaucoma, or urinary retention. Especially in children,<unk>  can cause hypoventilation, but much more seldom than codeine and other opioid antitussives. The treatment of overdosage aims at the symptoms; there are no specific antidotes available.
Pentoxyverine
Denaverine
Protamine
Phenoperidine
Drotaverine
Fresh frozen plasma
Aminocaproic acid
Protamine sulfate