Soma is a muscle relaxer that blocks pain sensation between the nerves and the brain. It is a brand medicine for Carisoprodol and works within 30 minutes of intake. Pain and discomfort associated with menstrual cramps, lower back pain, migraine etc. can be treated with muscle relaxer Soma. Many studies demonstrate that Carisoprodol, the active compound of the Soma pill, is capable of crossing the placenta wall (an organ that develops in the uterus during pregnancy). It increased the risk of birth defects. For more details about how Soma can affect during pregnancy, read this blog