Each 10 mL solution contains: -L-carnitine 1 gm - L-carnitine is a substance that is made in the human brain, liver, and kidneys. It helps the body convert fat into energy. L-carnitine is important for heart and brain capacity, muscle development, and many other body processes. The body can convert L-carnitine into various synthetic compounds called acetyl-L-carnitine and propionyl-L-carnitine. However, it is not satisfactory whether these other carnitines have the same benefits.
L-carnitine is used to increase L-carnitine levels in individuals who have extremely low regular levels of L-carnitine. Some people also use L-carnitine for heart and nerve conditions, severe kidney disease, and many other conditions, but there is no proper logical evidence to support these purposes.
Chest pain - Taking L-carnitine seems to improve exercise tolerance in people with chest pain. Taking L-carnitine along with standard treatment also seems to reduce chest pain and improve exercise capacity in people with cardiac syndrome.
Heart failure - People with this condition have chest pain but the arteries are not blocked. IV products can only be given by a healthcare provider. Taking L-carnitine by mouth or by IV seems to improve symptoms and increase exercise capacity in people with heart failure.
Cholesterol - Taking L-carnitine by mouth or by IV might improve cholesterol and triglyceride levels in small amounts. IV products can only be given by a healthcare provider.
Kidney failure - The FDA has approved giving L-carnitine by IV for kidney failure, but not by mouth. It can only be given by a healthcare provider.
There isn't enough reliable information to know if L-carnitine is safe to use while pregnant. Be on the safe side and avoid use. While breast-feeding, L-carnitine is probably safe to take when taken by mouth in doses recommended by a healthcare provider. Small amounts of L-carnitine have been passed to infants in breast milk and have been reported to have no side effects. The effects of large amounts are unknown. L-carnitine is POSSIBLY SAFE when used by mouth appropriately, short-term. It has been used safely by mouth for up to 6 months.