6542 is known generically as scopolamine. This medication is used to relieve symptoms such as digestive colic. Side effects such as dry mouth, flushing, and blurred vision may occur with the use of scopolamine. Scopolamine is a commonly used anticholinergic drug in clinical practice, and by inhibiting some of the receptor functions, it is able to provide relief to some of the smooth muscle spasms in the body. Therefore, this drug has the effect of relieving spasm of smooth muscles of the gastrointestinal tract, treating pain caused by spasm of the gastrointestinal tract or biliary tract, and assisting in the treatment of organophosphorus poisoning. Adverse reactions can be understood as side effects. After using the drug, adverse reactions such as decreased salivary secretion, facial flushing, blurred vision, palpitations, and difficulty in urination may occur. After side effects occur, it is recommended to temporarily stop using the drug, and the symptoms usually recover 1-3 hours after stopping the drug. If the symptoms are not relieved or aggravated after stopping the drug, it suggests that atropine poisoning may occur, and must be immediately sent to the emergency room. It should be noted that scopolamine is contraindicated in cases of increased intracranial pressure, active cerebral hemorrhage, gastrointestinal obstruction, glaucoma, and prostatic hypertrophy. Caution is needed if you suffer from reflux esophagitis, severe ulcerative colitis, acute abdomen of unknown origin. Scopolamine needs to be used under the supervision of a clinician.