Cimetropium is a semi-synthetic belladonna alkaloid and derivative of scopolamine. It is a potent antimuscarinic and an effective antispasmodic drug. It is also endowed of a direct myolitic action which partially accounts for its antispasmodic activity. 

Metaxalone is a muscle relaxant used to relax muscles and relieve pain caused by strains, sprains and other musculoskeletal conditions. Its exact mechanism of action is not known, but it may be due to general central nervous system depression.

Methocarbamol is a medication used for short-term musculoskeletal pain. It may be used together with rest, physical therapy and pain medication. It is less preferred in low back pain. It has limited use for rheumatoid arthritis and cerebral palsy.