<unk> , also known as scopolamine<unk>  and sold under the brandname<unk>  among others, is an anticholinergic medication used to treat crampy abdominal pain, esophageal spasms, renal colic, and bladder spasms. It is also used to improve respiratory secretions at the end of life.<unk>  can be taken by mouth, injection into a muscle, or into a vein. Side effects may include sleepiness, vision changes, dry mouth, rapid heart rate, triggering of glaucoma, and severe allergies. Sleepiness is uncommon. It is unclear if it is safe in pregnancy. It appears safe in breastfeeding. Greater care is recommended in those with heart problems. It is an anticholinergic agent, which does not have much effect on the brain.<unk>  was patented in 1950, and approved for medical use in 1951. It is on the World Health Organization's List of Essential Medicines. It is not available in the United States, and a similar compound methscopolamine may be used instead. It is manufactured from<unk> , which occurs naturally in the plant deadly nightshade. It is available in the United States only for the medical treatment of horses.
Hyoscine butylbromide
Halofantrine
Terbutaline
Bromethalin
Acetomepregenol
Oxymetazoline
Levomepromazine
Pilocarpine