cyclobenzaprine, Flexeril, Amrix (cont.)

Pharmacy Author:
Medical and Pharmacy Editor:

PREGNANCY: There are no adequate studies of cyclobenzaprine in pregnant women. However, studies in animals suggest no important effects on the fetus. Cyclobenzaprine therefore can be used in pregnancy if the physician feels that it is necessary.

NURSING MOTHERS: It is not known whether cyclobenzaprine is secreted in milk. However, since it is related to the tricyclic antidepressants, some of which are excreted in breast milk, caution is advised in using this medication in women who are breastfeeding.

SIDE EFFECTS: Common side effects of cyclobenzaprine include drowsiness, dry mouth, fatigue, headaches, and dizziness. Other reported side effects include nausea, constipation, blurred vision, unpleasant taste, nervousness, confusion, acid reflux, and abdominal pain or discomfort. Abrupt cessation after prolonged therapy may cause withdrawal symptoms such as headaches, nausea, and weakness.

Reference: FDA Prescribing Information


Last Editorial Review: 7/28/2010



Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Pill Finder Tool

Need help identifying pills and medications?
Use the pill identifier tool on RxList.


Back to Medications Index