Introduction: Belladonna is an herb in the nightshade family that is believed to have medicinal properties. It has a chemical that can block functions of the body’s nervous system. Some of the body functions regulated by the nervous system include salivation, sweating, pupil size, urination and digestive functions. Belladonna can also cause increased heart rate and blood pressure. The active agents in belladonna include atropine, hyoscine (scopolamine) and hyoscyamine, which have anticholinergic properties. The first chemical is scopolamine, which primarily used for reducing body discharges. It is also helpful in reducing stomach acid, which can help with both nausea and acid reflux. Scopolamine is also used for controlling the heart rate and relaxing muscles. The second compound, atropine, can be used to dilate the eyes. In some cases, atropine works as an antidote for insect poison and chemical warfare agents.