Acetyl-L-carnitine is also known as ALC. Some people with high blood sugar use it to help with cholesterol as well as nerve pain, such as tingling in their hands and feet. Others have used it to help stop cell damage. It may also help improve appetite and help the body turn fat into energy. Some people use it to improve their mood. People with blood vessel problems in their legs have used it to help them walk better and to walk with less pain. ALC may also help people with low carnitine levels to have a more normal level in their blood.

Alli (orlistat) is an over-the-counter drug meant for overweight adults who are struggling to shed excess pounds. Orlistat blocks some of the fat that you eat, keeping it from being absorbed by your body. Orlistat is used to aid in weight loss, or to help reduce the risk of regaining weight already lost. This medicine must be used together with a reduced-calorie diet. Orlistat is for use only in adults.

Generic Xenical is used for managing obesity in adults and adolescents 12 years and older. It is also used to reduce the risk of weight regain after previous weight loss.