LSD Abuse

Users refer to their experience with LSD as a "trip" and to acute adverse reactions as a "bad trip." These experiences are long - typically they begin to clear after about 12 hours.

Appearing first are physical effects including: numbness; muscle weakness and trembling; rapid reflexes; increased blood pressure, heart rate, and temperature; impaired motor skills and coordination; dilated pupils; and, occasionally, nausea and seizures. One of most noticeable signs is laughter, often at things that aren't particularly funny and often uncontrollable.

Dramatic changes in perception, thought, and mood occur shortly after the physical effects. These may include:

vivid, usually visual, "pseudo-hallucinations" that the user is aware are not real
distorted perceptions of: time (minutes seem like hours); distance (hazardous if operating motor vehicles or standing near balcony edges); gravity (sensations of floating or being pressed down); the space between oneself and one's environment (for some, a feeling of oneness with the universe, for others, a feeling of terror)
fusion of the senses (music is "seen," colors "heard")
diminished control over thought processes, resulting in recent or long-forgotten memories resurfacing and blending with current experience, or in insignificant thought or objects taking on deep meaning

Q) What are the side effects of LSD use?

A) The side effects of LSD are: dilated pupils, higher body temperature, increased heart rate and blood pressure, sweating, loss of appetite, sleeplessness, dry mouth, and tremors.

Some LSD users experience severe, terrifying thoughts and feelings, fear of losing control, fear of insanity and death, and despair while using LSD. Some fatal accidents have occurred during states of LSD intoxication.

Many LSD users experience flashbacks (visual images ranging form formless colors to frightening hallucinations), without the user having taken the drug again. A flashback occurs suddenly, often without warning, and may occur within a few days or more than a year after LSD use. Flashbacks usually occur in people who use hallucinogens chronically or have an underlying personality problem; however, otherwise healthy people who use LSD occasionally may also have flashbacks. Bad trips and flashbacks are only part of the risks of LSD use. LSD users may manifest relatively long-lasting psychoses, such as schizophrenia or severe depression. It is difficult to determine the extent and mechanism of the LSD involvement in these illnesses.