Muscoril 8mg/6amp is a prescription muscle relaxant used to treat muscle stiffness and spasm. It is available in an injection form and is administered intramuscularly or intravenously by a healthcare professional. It works by blocking nerve impulses that cause muscles to contract, resulting in relaxation. Muscoril can help reduce or eliminate muscle pain, muscle tension, or spasm. It is typically used as a short-term remedy, and long-term use should be monitored carefully by a physician.