Deliriant use is associated with highly uncomfortable and/or dangerous experiences.
Deliriants are highly unpredictable and may result in erratic behaviors, self-injury, hospitalization, or death. It should be noted that most individuals do not choose to repeat the experience due to its unpleasant nature.
Please use harm reduction practices if using this substance (e.g. starting with a low dose and always having a trip sitter). Refer to this section for more details.
 |
This page has not been fully approved by the PsychonautWiki administrators. It may contain incorrect information, particularly with respect to dosage, duration, subjective effects, toxicity and other risks. It may also not meet PW style and grammar standards. |
 |
This article is a stub. As such, it may contain incomplete or wrong information. You can help by expanding it. |
| Summary sheet: Biperiden |
Template:SubstanceBox/Biperiden
Biperiden (often sold under the brand name Akineton, among others) is an anticholinergic substance used to treat Parkinson's disease and some antipsychotic-induced movement disorders. Taken in higher doses than those used clinically, it has deliriant effects.
History and culture
 |
This History and culture section is a stub. As a result, it may contain incomplete or wrong information. You can help by expanding it. |
Biperiden was invented in Germany in 1953 by Dr. W. Klavehn.[1] It became approved in the United States in 1959.[2]
It is on the World Health Organization's List of Essential Medicines, a list which catalogues the safest and most effective medicines needed in a health system.[3]
Subjective effects
Disclaimer: The effects listed below cite the Subjective Effect Index (SEI), an open research literature based on anecdotal user reports and the personal analyses of PsychonautWiki contributors. As a result, they should be viewed with a healthy degree of skepticism.
It is also worth noting that these effects will not necessarily occur in a predictable or reliable manner, although higher doses are more liable to induce the full spectrum of effects. Likewise, adverse effects become increasingly likely with higher doses and may include addiction, severe injury, or death ☠.
Physical effects 
-
- Sedation[4]
- Nausea suppression
- Dry mouth[4]
- Difficulty urinating[4]
- Muscle relaxation
- Physical euphoria - This effect is mild and short-lasting. It may also occur at high doses.[4]
- Constipation[4]
- Increased heart rate[4]
- Pupil dilation[4]
Cognitive effects 
-
- Delusions of sobriety - This is the false belief that one is perfectly sober despite obvious evidence to the contrary such as severe cognitive impairment and an inability to fully communicate with others.
Visual effects 
-
Distortions
- Depth perception distortions - This side effect is uncommon.
Suppressions
Hallucinatory states
- External hallucination (autonomous entities; settings, sceneries, and landscapes; perspective hallucinations and scenarios and plots) - It can be comprehensively described through its variations as delirious in believability, controllable or autonomous in controllability and solid in style. The most common themes for these hallucinations include those of both everyday occurrences such as smoking phantom cigarettes, talking to people who are not there, seeing and feeling insects and immersion in sinister or nightmarish experiences.
- Internal hallucination (autonomous entities; settings, sceneries, and landscapes; perspective hallucinations and scenarios and plots) - Relative to other hallucinogens, this effect occurs briefly and spontaneously at moderate doses but becomes progressively extended in its occurrence and duration proportional to dosage before eventually becoming all-encompassing. It can be comprehensively described through its variations as delirious in believability, interactive in style, equal in new experiences and memory replays in content, autonomous in controllability and solid in style. Internal hallucinations may occur at lighter dosages than needed to cause external hallucinations and delirium.
- Peripheral information misinterpretation
- Shadow people
- Transformations
- Unspeakable horrors
- Object activation
After effects 
Toxicity and harm potential
| |
This toxicity and harm potential section is a stub. As a result, it may contain incomplete or even dangerously wrong information! You can help by expanding upon or correcting it. |
It is strongly recommended that one use harm reduction practices when using this substance.
Legal status
See also
External links
References
- ↑ Espacenet patent search: Bibliographic data
- ↑ "Biperiden Hydrochloride". The American Society of Health-System Pharmacists. Archived from the original on 21 December 2016. Retrieved 8 December 2016.
- ↑ World Health Organization (2019). World Health Organization model list of essential medicines: 21st list 2019. Geneva: World Health Organization. hdl:10665/325771
. WHO/MVP/EMP/IAU/2019.06. License: CC BY-NC-SA 3.0 IGO.
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 "Biperiden Monograph for Professionals".
- ↑ Drugs@FDA: oral biperiden HCl tablets
- ↑ Drugs@FDA: biperiden lactate injections