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What is the FDA pregnancy risk classification system for drugs?

Dawn Marcus
Neurology
Below is the Food and Drug Administration (FDA) pregnancy risk classification system:

A -- These drugs are considered safe to use during pregnancy, based on controlled research studies in women.

B -- These drugs are considered likely to be safe, but controlled studies in women have not been done to confirm safety.

C -- These drugs are considered possibly to be unsafe. Problems may have been identified in animal studies, but there are no studies in women. Drugs that haven't been tested in either pregnant animals or women will also be given a "C" rating.

D -- These drugs are considered probably to cause problems for some exposed babies, but the drugs may still be used during pregnancy when the mother needs to treat a serious or life threatening health problem and safer treatments won't work.

X -- These drugs will likely cause problems for some exposed babies and should be avoided during pregnancy.
The Woman's Migraine Toolkit: Managing Your Headaches from Puberty to Menopause (A DiaMedica Guide to Optimum Wellness)

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The Woman's Migraine Toolkit: Managing Your Headaches from Puberty to Menopause (A DiaMedica Guide to Optimum Wellness)

Migraines are a common, controllable type of headache that affects one in every six women, more than 20 million in the United States alone. The Woman’s Migraine Toolkit helps readers take charge of...

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.