How long does Acid stay in your System?


Lysergic Acid Diethylamide or acid is a strong hallucinogen abbreviated as LSD. Depending on the type of tests used, acid can remain detectible in the system for nearly five days after initial use.

The drug is famous for its effect on the central nervous system and the resultant psychological changes.It may not be physically addictive, but acid use can eventually lead to psychotic effects and repeated use and dosing.Such effects are what are termed as ‘tripping’ which users enjoy and feel after using the drug. LSD use however also comes with several negative and dangerous consequences.

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LSD users mainly take the drug so as to alter their mood and perception as well as revel in its hallucinogenic effects. Acid is usually taken orally; it can also be injected, inhaled, or applied on the surface of the skin. Liquid LSD available in dropper bottles comes with varying levels of potency as the fluid is water-based.

How long does acid stay in your system?

Acid comes with a plasma half-life of between two and a half to four hours. Acid effects are faster when used intravenously, usually within 10 minutes of use, while it is much slower when taken orally, typically in 20 to 30 minutes. The effects reach their peak levels after 2 to 4 hours and then slowly fade away in 6 to 8 hours. The residual effects of acid may persist for a longer period, but often resolve in about 12 hours after use.

Testing for acid in the system

As discussed above acid stays in the system for a short period of time. It typically gets removed from the body in about 24 hours, but this is also dependent on the dosage of amount of LSD used.As acid has no medical uses, it cannot be tested using therapeutic levels of use. Hence, LSD drug tests have low cut-off concentration ranges.

  • As is the case with most drugs, the detectability and detection of acid in the system is also dependent on several factors, including the metabolism of the user, age, body mass, physical activities, hydration, and underlying health disorders, etc.As LSD comes with a shorter detectability period, it can get detected with certain tests for only a short period of time, while other tests may detect acid in the system for nearly 3 months.
  • Acid can be detected for only about 3 hours in a blood test; for about 8 to 24 hours via a urine test; for about 1 to 2 days via a saliva test; and for nearly 90 days via a hair follicle acid test.


Effects of Acid

Acid may not stay in the system for long, and definitely not in the spine as suggested by myths, the drug is capable of causing permanent neurological damage over the course of prolonged use. It is one of the reasons why users tend to experience trips or episodes, such as seizures or black outs, many months or even some years later. This effect especially poses danger when engaged in certain activities such as eating, caring for a child, or driving, etc.

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The effects of acid, during and post use, tend to differ from one user to another and may be dependent on varied factors such as dosage levels, age, moods, predisposition, weight, underlying mental conditions, and environment, etc.

Drug users may experience psychological changes such as negative reactions, long-term change in personality, and incorrectly perceived state of the mind, etc., as well as altered senses, including sensory changes like changes in memories, emotions, perception of time, and state of awareness. These changes may persist or even aggravate during the remainder of life.

Some of the physical effects of acid include nausea, hyperflexia, mucus/saliva buildup, high blood glucose levels, low appetite, clenching of the jaws, goose bumps, insomnia, elevated heart rate, and tremors, etc.

Users who undergo a ‘bad trip’ may react adversely to the effects of the drug. They may eventually suffer from major depression or paranoia. They may become excessively violent, suicidal, or even homicidal. Such outcomes are especially evident and more dangerous when acid is used when the user is depressed, angry, anxious, or upset.

LSD Addiction


Addiction refers to physical dependence on a drug characterized by high tolerance levels for the drug as well as occurrence of physiological symptoms of withdrawal when the drug use is stopped or lowered.

Physical dependence or addiction to acid is very rare. This is because acid comes with rapid development of tolerance levels, but such tolerance also fades away just as quickly. Users may develop sensitivity/tolerance to the behavioral effects of acid use, rapidly, after using the drug consecutively for 3 to 4 days. Such tolerance returns to normal in 3 to 4 days after the drug use is stopped.Also, acid use does not result repeated use patterns over long periods of time. However, as discussed above, acid use can result in episodes, bad trips, and social and psychological problems, etc., over prolonged periods.

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