The law of conservation of mass (from Lavoisier) states that mass can be neither created nor destroyed (but it may change its form into something that is not desired, such as heat with an engine) or that in a chemical reaction, the total mass of the reacting substances is equal to the total mass of products formed.
The anticholinergics and antispasmodics are a group of medicines that include the natural belladonna alkaloids (atropine, belladonna, hyoscyamine, and scopolamine) and related products. The anticholinergics and antispasmodics are used to relieve cramps or spasms of the stomach, intestines, and bladder. Some are used together with antacids or other medicines in the treatment of peptic ulcers. Others are used to prevent nausea, vomiting, and motion sickness.
Anticholinergics. Anticholinergics work in the following ways: 1  Inhibit the involuntary contractions of the bladder. 2  Increase capacity of the bladder. 3  Delay the initial urge to void.hey are useful for men with benign prostatic hyperplasia who also have urge incontinence. The older alpha-blockers terazosin (Hytrin) and doxazosin (Cardura) are now prescribed less often than the newer selective alpha-blockers tamsulosin (Flomax), alfuzosin (Uroxatral), and silodosin (Rapaflo).