Can pregnant women take cyclobenzaprine?

Flexeril (cyclobenzaprine hcl): Flexeril (cyclobenzaprine hcl) has been classified as Category B by the FDA. Category B drugs have not been shown to cause teratogenicity or fetal abnormalities in animal studies but have not been fully evaluated in humans. Category B drugs such as cyclobenzaprine should be given during a pregnancy only when the physician determines that the risks are less than the benefits of the drug's actions. Ask your GYN doc.