|Summary sheet: 4-CA|
|Common names||4-CA, PCA, 4-CMP, P-CMP|
|Substitutive name||4-Chloroamphetamine, para-Chloroamphetamine|
|Psychoactive class||Stimulant / Entactogen|
|Routes of Administration|
4-Chloroamphetamine (also known as 4-CA, 4-CMP, para-Chloroamphetamine, PCA and P-CMP) is a novel, synthetic substituted amphetamine that induces a mixture of entactogenic and stimulant effects when administered. 4-CA is known for its severe neurotoxicity and was found to selectively destruct serotonergic neurons in animal study.
It is highly recommended to avoid the use of this substance and to use harm reduction practices if done anyway.
- 1 History and culture
- 2 Chemistry
- 3 Pharmacology
- 4 Subjective effects
- 5 Toxicity and harm potential
- 6 Legal status
- 7 See also
- 8 External links
- 9 References
History and culture
This History and culture section is a stub.
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In 1963, the effects of 4-CMA were described by the Swiss researchers Pletscher, Burkard, Bruderer and Gey. Because of their results, several other chlorinated analogs of amphetamine, including 4-CA had been synthesized by the American pharmaceutical company Eli Lilly and Company. They were evaluated as appetite suppressants. U.S. American biochemist Ray W. Fuller and collegues resynthesized these compounds and found that 4-CA was the most potent serotonin depletor. Van Praag and others conducted comprehensive clinical study on humans in 1971, and it has been found to have a potent antidepressant effect. In 1972, Sanders-Bush, Bushing and Sulser from Vanderbilt University first described a decrease in tryptophane hydroxylase activity. 4-CA became a common tool for selective modification of the serotonergic function Yunger, McMaster, and Harvey described the related neurotoxicity in 1974.
4-Chloroamphetamine is a synthetic compound of the substituted amphetamine class. Amphetamines contain a phenethylamine core featuring a phenyl ring bound to an amino (NH2) group through an ethyl chain with an additional methyl substitution at Rα. Amphetamines are alpha-methylated phenethylamines. 4-CA contains a chlorine atom at R4 of its phenyl ring and is a chlorinated analogue of amphetamine.
|This subjective effects section is a stub.|
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Disclaimer: The effects listed below are cited from the subjective effect index, which is based on anecdotal reports and the personal experiences of PsychonautWiki contributors. As a result, they should be treated with a healthy degree of skepticism. It is worth noting that these effects will rarely (if ever) occur all at once, although higher doses will increase the chances of inducing a full range of effects. Likewise, adverse effects become much more likely on higher doses and may include serious injury or death.
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- Abnormal heartbeat
- Appetite suppression
- Decreased blood pressure
- Decreased heart rate
- Difficulty urinating
- Dry mouth
- Frequent urination
- Increased blood pressure
- Increased bodily temperature
- Increased heart rate
- Increased perspiration
- Increased salivation
- Orgasm suppression
- Physical euphoria
- Pupil dilation
- Teeth grinding
- Temperature regulation suppression
- Temporary erectile dysfunction
- Vibrating vision
If applicable, a brief paragraph summary of the substance's visual effects may be included here.
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There are currently 0 experience reports which describe the effects of this substance in our experience index.
Additional experience reports can be found here:
Toxicity and harm potential
This toxicity and harm potential section is a stub.
As such, it may contain incomplete or even dangerously wrong information. You can help by expanding or correcting it.
It is strongly recommended that one use harm reduction practices when using this substance.
Tolerance and addiction potential
Although many psychoactive substances are reasonably safe to use on their own, they can quickly become dangerous or even life-threatening when taken with other substances. The following lists some known dangerous combinations, but cannot be guaranteed to include all of them. Independent research should always be conducted to ensure that a combination of two or more substances is safe to consume. Some interactions listed have been sourced from TripSit.
- Alcohol - Drinking alcohol on stimulants is considered risky because it reduces the sedative effects of the alcohol that the body uses to gauge drunkenness. This often leads to excessive drinking with greatly reduced inhibitions, increasing the risk of liver damage and increased dehydration. The effects of stimulants will also allow one to drink past a point where they might normally pass out, increasing the risk. If you do decide to do this then you should set a limit of how much you will drink each hour and stick to it, bearing in mind that you will feel the alcohol and the stimulant less.
- GHB/GBL - Stimulants increase respiration rate allowing a higher dose of sedatives. If the stimulant wears off first then the opiate may overcome the user and cause respiratory arrest.
- Opioids - Stimulants increase respiration rate allowing a higher dose of opiates. If the stimulant wears off first then the opiate may overcome the patient and cause respiratory arrest.
- Cocaine - This combination of stimulants will increase strain on the heart. It is not favored as cocaine has a mild blocking effect on dopamine releasers like amphetamine.
- Caffeine - This combination of stimulants is generally considered unnecessary and may increase strain on the heart, as well as potentially causing anxiety and physical discomfort.
- Tramadol - Tramadol and stimulants both increase the risk of seizures.
- DXM - Both substances raise heart rate, in extreme cases, panic attacks caused by these substances have led to more serious heart issues.
- Ketamine - No unexpected interactions. Likely to increase blood pressure but not an issue with sensible doses. Moving around on high doses of this combination may be ill advised due to risk of physical injury.
- PCP - Increases risk of tachycardia, hypertension, and manic states.
- Methoxetamine - Increases risk of tachycardia, hypertension, and manic states.
- Psychedelics - Increases risk of anxiety, paranoia, and thought loops.
- 25x-NBOMe - Amphetamines and NBOMes both provide considerable stimulation that when combined they can result in tachycardia, hypertension, vasoconstriction and, in extreme cases, heart failure. The anxiogenic and focusing effects of stimulants are also not good in combination with psychedelics as they can lead to unpleasant thought loops. NBOMes are known to cause seizures and stimulants can increase this risk.
- Cannabis - Stimulants increase anxiety levels and the risk of thought loops and paranoia which can lead to negative experiences.
- Psilocybin mushrooms
- MAOIs - MAO-B inhibitors can increase the potency and duration of phenethylamines unpredictably. MAO-A inhibitors with amphetamine can lead to hypertensive crises.
This legality section is a stub.
As such, it may contain incomplete or wrong information. You can help by expanding it.
- China: 4-CA is a controlled substance in China.
- Germany: 4-CA is controlled under the NpSG as it is a derivative of 2-phenethylamine. Production and import with the aim to place it on the market, administration to another person and trading is punishable. Possession is illegal but not penalized.
- United States: 4-CA remains unscheduled.
- Miller, Krys J.; Anderholm, David C.; Ames, Matthew M. (1986). "Metabolic activation of the serotonergic neurotoxin para-chloroamphetamine to chemically reactive intermediates by hepatic and brain microsomal preparations". Biochemical Pharmacology. 35 (10): 1737–1742. doi:10.1016/0006-2952(86)90332-1. ISSN 0006-2952.
- Pletscher, A.; Burkard, W.P.; Bruderer, H.; Gey, K.F. (1963). "Decrease of cerebral 5-hydroxytryptamine and 5-hydroxyindolacetic acid by an arylalkylamine". Life Sciences. 2 (11): 828–833. doi:10.1016/0024-3205(63)90094-8. ISSN 0024-3205.
- Fuller, Ray W. (1992). "Effects of p-chloroamphetamine on brain serotonin neurons". Neurochemical Research. 17 (5): 449–456. doi:10.1007/BF00969891. ISSN 1573-6903.
- Owen Jr., John E. (1963). "Psychopharmacological Studies of Some 1-(Chlorophenyl)-2-aminopropanes I: Effects on Appetitive-Controlled Behavior". Journal of Pharmaceutical Sciences. 52 (7): 679–683. doi:10.1002/jps.2600520716. ISSN 0022-3549.
- Fuller, Ray W.; Hines, C.W.; Mills, J. (1965). "Lowering of brain serotonin level by chloramphetamines". Biochemical Pharmacology. 14 (4): 483–488. doi:10.1016/0006-2952(65)90221-2. ISSN 0006-2952.
- van Praag, H.M.; Schut, T.; Bosma, E.; van den Bergh, R. (1971). "A comparative study of the therapeutic effects of some 4-chlorinated amphetamine derivatives in depressive patients". Psychopharmacologia. 20 (1): 66–76. doi:10.1007/BF00404060. ISSN 1432-2072.
- Shulgin, Alexander T. (1978). "Chapter 6". In Iversen, Leslie L.; Iversen, Susan D.; Snyder, Solomon H. Handbook of Psychopharmacology. Volume 11: Stimulants. New York: Plenum Press,. p. 313 et seq. ISBN 978-1-4757-0512-6.
- Sanders-Bush, E.; Bushing, J.A.; Sulser, F. (1972). "p-Chloroamphetamine—inhibition of cerebral tryptophan hydroxylase". Biochemical Pharmacology. 21 (10): 1501–1510. doi:10.1016/0006-2952(72)90375-9. ISSN 0006-2952.
- Stein, J.M.; Wayner, M.J.; Kantak, K.M. (1981). "Increased urination following p-chloroamphetamine". Pharmacology Biochemistry and Behavior. 15 (2): 297–301. doi:10.1016/0091-3057(81)90191-X. ISSN 0091-3057.
- Stein, J.M.; Wayner, M.J.; Kantak, K.M.; Cook, R.C. (1978). "Short- and long-term effects of para-chloroamphetamine on ingestive behavior". Pharmacology Biochemistry and Behavior. 9 (1): 115–122. doi:10.1016/0091-3057(78)90021-7. ISSN 0091-3057.
- Quock, Raymond M.; Weick, Barton G. (1979). "p‐Chloroamphetamine‐induced hyperthermia pharmacologically distinct from fenfluramine‐induced hyperthermia". Journal of Pharmacy and Pharmacology. 31 (1): 27–32. doi:10.1111/j.2042-7158.1979.tb13416.x. ISSN 0022-3573.
- Anlage NpSG - Einzelnorm | https://www.gesetze-im-internet.de/npsg/anlage.html
- § 4 NpSG - Einzelnorm | https://www.gesetze-im-internet.de/npsg/__4.html