<prompt> A patient presents to emergency with a pinpoint pupil, salivation, lacrimation, tremors and red tears. Plasma cholinesterase level was 30 of normal. Most probable Diagnosis is:Organophospahte poisoningDhatura poisoningOpioid poisoningPontine hemorrhage  <response>: The given features are those of anticholinesterase.Acetylcholinesterase causes inactivation of acetylcholine after its action at neuromuscular junctions. When this is blocked, there is the higher action of acetylcholine, which shows as increased parasympathetic activity.Anticholinesterase activity is seen in Organophosphate poisoning. 