Hyoscine Injection (Hyoscine Butylbromide) is an antispasmodic medication used to relieve painful spasms of the smooth muscles in the gastrointestinal, biliary, and genitourinary tracts. It works by blocking muscarinic receptors, helping to reduce muscle contractions and associated pain. The injection provides rapid relief and is commonly used in conditions such as abdominal colic, renal colic, biliary colic, and during diagnostic or surgical procedures to control spasms.