PEP Pill is a term used to describe a STIMULANT, UPPER, and AMPHETAMINE. It is a combination of drugs that are used to increase alertness, energy, and focus. The term PEP Pill is derived from the first letter of each drug: STIMULANT (P), UPPER (E), and AMPHETAMINE (P). These drugs are often used to treat conditions such as narcolepsy, attention deficit hyperactivity disorder (ADHD), and depression. They can also be abused for recreational purposes.