Caffeine. Most people who are allergic to coffee are allergic to the caffeine in it. Caffeine is a naturally occurring drug classified as a stimulant. Itâs found in many different things including tea and coffee and is a natural byproduct of various plants.
LSD long term use and effects can be very serious. Long term effects of LSD use can occur in anyone who uses LSD, though heavy users, or those who use the drug over a longer period of time, are more likely to experience long term effects.LSD long term use and effects include:1  Tolerance, which causes a person to take more of the drug, which can lead to life-threatening overdoses. 2  Acid flashbacks, or hallucinogen persisting perception disorder, an uncontrolled event where the person experiences the effects of LSD use again without taking the drug.SD long term use and effects can be very serious. Long term effects of LSD use can occur in anyone who uses LSD, though heavy users, or those who use the drug over a longer period of time, are more likely to experience long term effects. LSD long term use and effects include:
Long-Term Effects of LSD. LSD, or d-lysergic acid diethylamide, belongs to a class of drugs called hallucinogens. This synthetic drug was first produced in 1938 by Swiss scientist who was investigating the medical uses of a fungus that grows on various types of grass.n LSD episode, or trip, may last up to 12 hours or more. According to the Cleveland Clinic, the exact effect of LSD on the brain remains unknown, but the drug may affect your brainâs response to serotonin, a neurotransmitter that affects your emotions, moods and perceptions.