<unk> , also known as hyoscine, or Devil's Breath, is a natural or synthetically produced tropane alkaloid and anticholinergic drug that is formally used as a medication for treating motion sickness and postoperative nausea and vomiting. It is also sometimes used before surgery to decrease saliva. When used by injection, effects begin after about 20 minutes and last for up to 8 hours. It may also be used orally and as a transdermal patch. Common side effects include sleepiness, blurred vision, dilated pupils, and dry mouth. It is not recommended in people with angle-closure glaucoma or bowel obstruction. Whether its use during pregnancy is safe remains unclear and use during breastfeeding is still cautioned by health professionals and manufacturers of the drug.<unk>  is in the antimuscarinic family of drugs and works by blocking some of the effects of acetylcholine within the nervous system.<unk>  was first written about in 1881 and started to be used for anesthesia around 1900. Around this time it was first proposed for and then subsequently used for years to induce amnesia and synergistic pain relief during childbirth by administering a combination of both<unk>  and morphine. These alkaloids when used in combination gave rise to a synergistic state called "twilight sleep".<unk>  is also the main active component produced by certain plants of the nightshade family, which historically have been used as psychoactive drugs (known as deliriants) due to their antimuscarinic-induced hallucinogenic effects. The name<unk> " is derived from one type of nightshade known as<unk> olia, while the name "hyoscine" is derived from another type known as Hyoscyamus niger. It is on the World Health Organization's List of Essential Medicines.
Scopolamine
Benzoctamine
Clofoctol
Bromethalin
Tesofensine
Bethanechol
Glycopyrronium bromide
Theobromine