654-2 can be taken before meals, can also be taken after meals, and will not affect the absorption of the drug. 654-2 is called scopolamine hydrochloride tablets, it is an anticholinergic drug, in the clinic can mainly relieve smooth muscle spasm, can be used for gastrointestinal colic, renal colic, biliary colic, as well as organophosphorus pesticide poisoning. But 654-2 also has some adverse reactions, and contraindications, such as patients with increased intracranial pressure, or acute phase of cerebral hemorrhage with glaucoma, intestinal obstruction, pyloric obstruction, or elderly patients with prostate hypertrophy, can not be used. Common adverse reactions lead to patients with dry mouth, red face, rapid heart rate, urinary difficulties, 654-2 in the clinical application must follow the doctor’s instructions.