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:
Many LSD users experience flashbacks, or a recurrence of the LSD trip, often without warning, long after taking LSD. Bad trips and flashbacks are only part of the risks of LSD use. LSD users may manifest relatively long-lasting psychoses or severe depression. Because LSD accumulates in the body, users develop a tolerance for the drug. In other words, some repeat users have to take it in increasingly higher doses to achieve a âhigh.â This increases the physical effects and also the risk of a bad trip that could cause psychosis.