CV effects eg bradycardia, hypotension, HTN, premature atrial or ventricular contractions, syncope, arrhythmia. CNS effects eg confusion, delirium, vertigo, euphoria. GI effects eg hypersalivation, abnormal cramping, diarrhoea, xerostomia, nausea, vomiting. Resp, skin, musculoskeletal, urogenital, haematological effects. Inj site reactions.