Neem is a tree. It grows in tropical regions. The bark, leaves, and seeds are used to make medicine.
Neem contains chemicals that used for leprosy, eye disorders, bloody nose, intestinal worms, stomach upset, loss of appetite, skin ulcers, diseases of the heart and blood vessels (cardiovascular disease), fever, diabetes, gum disease (gingivitis), and liver problems. The leaf is also used for birth control and to cause abortions.
- Tooth plaque. Most research shows that applying a gel containing neem leaf extract to the teeth or using a neem mouthwash can reduce the amount of plaque on the teeth. But it might not be as helpful as using chlorhexidine mouthwash.
- A mild form of gum disease (gingivitis). Most research shows that applying a gel containing neem leaf extract or using a neem mouthwash can reduce gingivitis in some people, but it doesn't seem to be as helpful as chlorhexidine mouthwash and it may not be effective for people with long-standing gingivitis.
- Lice. Clinical research shows that applying a neem extract shampoo to the scalp once completely cures head lice in children.
Special Precautions & Warnings:
Pregnancy: Neem oil and neem bark are LIKELY UNSAFE when taken by mouth during pregnancy. They can cause a miscarriage.
Breast-feeding: There isn't enough reliable information to know if neem is safe to use when breast-feeding. Stay on the safe side and avoid use.
Diabetes: There is some evidence that neem can lower blood sugar levels and might cause blood sugar to go too low. If you have diabetes and use neem, monitor your blood sugar carefully. It might be necessary to change the dose of your diabetes medication.