It is odorless and colorless, with a slightly bitter taste, and is usually taken orally. The effects of marijuana include euphoria, giddiness, distorted sense of time, impairments of attention and memory, and impairments of complex visual and motor skills. Marijuana is usually smoked, but some users mix it into food or brew it with tea. Clinical programs often treat recovering opiate abusers with daily doses of methadone. The length of treatment is often indefinite.
Users report increased energy and motivation, often coupled with a sense of invincibility.
Methamphetamine can be snorted, swallowed, injected, or smoked. Opium produces euphoria in the user and may be used as a painkiller. Locally seen red rock opium resembles crystalline rocks and is said to be reddish brown in color. It is usually smoked, but may also be taken orally. Percocet is an opioid analgesic.