May 28, 2016

Onion

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How does Onion work?

Onion might help reduce cholesterol levels, a risk factor for hardening of the arteries. There is some evidence that onion might also reduce lung tightness in people with asthma.

Are there safety concerns?

Onion is LIKELY SAFE when taken by mouth in amounts commonly found in food or when applied to the skin. It is POSSIBLY SAFE for most people when taken by mouth in larger amounts. Taking up to a maximum of 35 mg of the onion ingredient "diphenylamine" per day for several months seems to be safe.

Special Precautions & Warnings:

Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking onion as a medicine if you are pregnant or breast-feeding. Stay on the safe side and avoid using onion in amounts larger than usual food amounts.

Bleeding disorder: Onion might slow blood clotting. There is concern that onion might increase the risk of bleeding when taken as a medicine. Don't use medicinal amounts of onion or onion extract if you have a bleeding disorder.

Diabetes: Onion might lower blood sugar. If you have diabetes and use onion in medicinal amounts, check your blood sugar carefully.

Surgery: Onion might slow blood clotting and lower blood sugar. In theory, onion might increase the risk for bleeding or interfere with blood sugar control during and after surgical procedures. Stop using onion as a medicine at least 2 weeks before a scheduled surgery.


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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.


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