What are the short-term effects of taking meth?

Immediately after smoking or injection, the user experiences an intense sensation called a "rush" or "flash," that lasts only a few minutes and is described as extremely pleasurable. (Snorting or swallowing meth produces euphoria- a high, but not a rush.)

Following the "rush," there is typically a state of high agitation that in some individuals can lead to violent behavior.

Other possible immediate effects include: 

Rapid weight loss

Anxiety

Mood disturbances

Repetitive motor activity

Depression

Increased blood pressure

Heart, liver, lung and kidney damage

Increased energy and activity level

Decreased appetite and weight loss

Euphoria and rush

Increased respiration

Hyperthermia (increased body temperature)

Paranoia and hallucinations