Muscarinic acetylcholine receptors can be blocked by the drugs atropine and scopolamine. The active agents in belladonna, atropine, hyoscine (scopolamine), and hyoscyamine, have anticholinergic properties. These plants contain deliriants, such as atropine and scopolamine, that cause hallucinations. The antidote to atropine is physostigmine or pilocarpine. Bradycardia caused by xylazine administration is effectively prevented by administration of atropine or glycopyrrolate. The antidote for belladonna poisoning is physostigmine or pilocarpine, the same as for atropine. Compare for example ipratropium, mirisetron, technepine, levomepate or scopolamine & atropine. At comparable doses, hyoscyamine has 98 per cent of the anticholinergic power of atropine. Treatment includes both a pralidoxime binder and an anticholinergic such as atropine. Another medication used for MG, atropine, can reduce the muscarinic side effects of acetylcholinesterase inhibitors. In symptomatic cases, intravenous atropine or isoproterenol may transiently improve conduction. Some withdrawal symptoms may respond to anticholinergics, such as atropine or benztropine mesylate. This includes the use of atropine, lidocaine, and amiodarone. Emergency treatment consists of administration of atropine sulfate or transcutaneous pacing. Medications that have had positive results in some include&colon; diphenhydramine, benzatropine and atropine.