Succinylcholine is a medication commonly used as a muscle relaxant during surgical procedures. It works by blocking the transmission of nerve impulses to the muscles, leading to temporary paralysis. This effect is particularly useful for intubation and other situations where muscle control is necessary. The drug acts quickly, typically within minutes, and its effects wear off relatively fast. However, it can cause side effects, such as muscle pain and, in rare cases, serious complications like malignant hyperthermia. Due to these risks, Succinylcholine is usually administered by trained healthcare professionals in controlled environments.