Phentermine is primarily used for which purpose?

Phentermine is primarily used for weight loss, making it a prescription medication aimed at individuals who are struggling with obesity or those who need to lose weight for health reasons. It functions as an appetite suppressant by stimulating the central nervous system, which can lead to decreased hunger and increased energy expenditure. This mechanism makes it a popular choice for short-term weight management in conjunction with a balanced diet and exercise.

In contrast, enhancing mood, treatment of ADHD, and inducing sleep pertain to different classes of medications that target specific conditions. Mood enhancement typically involves antidepressants or other psychological treatments; ADHD treatments often include stimulants such as amphetamines or non-stimulant medications, and sleep induction usually falls in the realm of sedatives or sleep aids. Therefore, Phentermine is specifically effective for weight loss rather than these other medical purposes.