Neem Oil Side Effects

Neem oil is a light or dark brown colored vegetable oil derived from the seeds of neem or Azadirachta indica tree, which is native to the regions of Southeast Asia and Indian subcontinent. The people of these regions have been using neem leaves and the various parts of the neem tree from thousands of years for healing a number of ailments. Neem has been a part of both Ayurveda and traditional Chinese medicine for its amazing medicinal properties. Neem oil uses are numerous. However, several researches have indicated a few side effects of this oil, along with its benefits.

Neem Oil Benefits

Its benefits can be mainly attributed to the active compound, 'azadirachtin'. This bitter oil is nowadays widely used as a safe and effective natural pesticide in organic farming. As an insecticide, it can protect plants from insects and pests like, mealy bug, beet armyworm, aphids, cabbage worm, whiteflies, mites, fungus gnats, thrips, beetles, moth larvae, mushroom flies, leafminers and caterpillars, without adversely affecting the beneficial insects like, honey bees, butterflies and lady bugs.

This oil can prove immensely beneficial for a number of skin conditions like, acne, psoriasis and eczema. By using neem oil for hair care, one can get rid of head lice, dandruff, itchy scalp, scalp psoriasis, excessive hair loss and premature graying. This oil is renowned for its antibacterial and antifungal properties. It can be used for preventing some common gum and tooth problems like, gingivitis and cavities. It is also used in certain spermicidal products, basically for its ability to inhibit the flagellation of the sperm cells, which in turn prevent them from reaching the egg.

Neem Oil Dangers

Despite having several benefits, this oil is not free of side effects. However, the external application of the oil is generally considered as safe. When taken internally, it can prevent conception by inhibiting the flagellation of the sperm cells. So, women trying to conceive are advised to avoid this product. This product may cause miscarriage, which has been observed in an animal study. Internal use of neem oil is not recommended in children.

This oil can be toxic, when taken in large doses. In small children and infants, it can produce symptoms similar to Reye's syndrome. Seizures, loss of consciousness and coma are some other problems that children can experience. Ingestion of neem oil may damage the brain and the liver. Kidneys too can get adversely affected by the prolonged and excessive use of this oil. Other possible side effects include, vomiting, lethargy, diarrhea, brain swelling and hepatic encephalopathy.

In diabetic patients, neem and its various extracts can reduce the level of blood sugar to a very low level. So, care must be taken by such people while using neem. Pregnant and breastfeeding women are usually advised to stay away from it. The oil and the bark of neem tree can cause miscarriage, if taken during pregnancy. It has been observed to stimulate the immune system, which can prove harmful for individuals having autoimmune diseases. Its use by such individuals can aggravate the symptoms of autoimmune diseases.

To summarize, neem oil is generally considered safe for adults, when used for a brief period of time and in the appropriate dosage. However, children, as well as pregnant and nursing women should not use this oil, in order to avoid the serious side effects. People with an underlying medical condition and those taking any kind of medications should better confirm with their physician before considering to use this oil internally.