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:
LSDâs Effects on the Brain. LSD, also known as acid, can be taken orally in tablets, capsules, as a liquid or on paper thatâs been saturated with the drug. An 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.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.