Onion is a plant. The bulb (rounded underground part) of the onion is used to make medicine.
Onion is used for treating digestion problems including loss of appetite, upset stomach, and gallbladder disorders; for treating heart and blood vessel problems including chest pain (angina) and high blood pressure; and for preventing “hardening of the arteries” (atherosclerosis). It is also used for treating sore mouth and throat, whooping cough, bronchitis, asthma, dehydration, intestinal gas, parasitic worms, and diabetes. Some people use it as a diuretic to increase urine output.
Onion is applied directly to the skin for insect bites, wounds, light burns, boils, warts, and bruises.
In foods, onion is used in many recipes.
In manufacturing, the oil is used to flavor foods.
How does it 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.
- Upset stomach.
- High blood pressure.
- Swelling (inflammation) of the mouth and throat.
- Loss of appetite.
- Preventing hardening of the arteries (atherosclerosis).
- Other conditions.
Side Effects & Safety
Onion is safe when taken in amounts commonly found in food. It might be safe for most people when taken in larger amounts, up to a maximum of 35 mg of the onion ingredient “diphenylamine” per day.
Special Precautions & Warnings:Pregnancy and breast-feeding: Not enough is known about the use of onion during pregnancy and breast-feeding. Stay on the safe side and avoid using onion in amounts larger than usual food amounts.
Diabetes: Onion might lower blood sugar. If you have diabetes and use onion in medicinal amounts, check your blood sugar carefully.
Moderate Interaction Be cautious with this combination
- Aspirin interacts with ONION
Some people are allergic to onions. Aspirin might increase your sensitivity to onions if you are allergic to onions. This has only been reported in one person. But to be on the safe side, if you are allergic to onions do not take aspirin and eat onions.
- Lithium interacts with ONION
Onion might have an effect like a water pill or "diuretic." Taking onion might decrease how well the body gets rid of lithium. This could increase how much lithium is in the body and result in serious side effects. Talk with your healthcare provider before using this product if you are taking lithium. Your lithium dose might need to be changed.
- Medications for diabetes (Antidiabetes drugs) interacts with ONION
Onion might decrease blood sugar. Diabetes medications are also used to lower blood sugar. Taking onion along with diabetes medications might cause your blood sugar to go too low. Monitor your blood sugar closely. The dose of your diabetes medication might need to be changed.
Some medications used for diabetes include glimepiride (Amaryl), glyburide (DiaBeta, Glynase PresTab, Micronase), insulin, pioglitazone (Actos), rosiglitazone (Avandia), chlorpropamide (Diabinese), glipizide (Glucotrol), tolbutamide (Orinase), and others.
- Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs) interacts with ONION
Onion might slow blood clotting. Taking onion along with medications that also slow clotting might increase the chances of bruising and bleeding.
Some medications that slow blood clotting include aspirin, clopidogrel (Plavix), diclofenac (Voltaren, Cataflam, others), ibuprofen (Advil, Motrin, others), naproxen (Anaprox, Naprosyn, others), dalteparin (Fragmin), enoxaparin (Lovenox), heparin, warfarin (Coumadin), and others.
The appropriate dose of onion depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for onion. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.