Nootropic profile
PRL-8-53
A synthetic nootropic developed at Creighton University that showed dramatic improvements in word recall in a double-blind study - with subjects over 30 showing 80-100% improvement, though research remains extremely limited to a single 1978 trial.
Educational only: this is not medical advice. Always check with a qualified healthcare professional before starting any supplement.
What is PRL-8-53?
PRL-8-53 (methyl 3-(2-(benzhydryloxy)ethyl)aminobenzoate hydrochloride) is a synthetic nootropic compound developed by Dr. Nikolaus Hansl at Creighton University in the 1970s.
What it does for you
Community and editorial ratings, out of 5:
How to take it
- Research dosage: 5 mg was the single dose used in the only human clinical trial, administered orally before the learning task
- Community-reported range: 5-10 mg per dose is the most commonly reported range among nootropic users, taken 30-60 minutes before cognitively demanding tasks
- Sublingual use: Some users report sublingual administration at 2-5 mg for faster onset, though no formal pharmacokinetic data supports this route
- Frequency: Typically used acutely (as needed) rather than daily, often before study sessions, exams, or demanding cognitive work
- Duration of effects: Based on the original study, cognitive benefits appear to persist for at least one week after a single dose, suggesting long-lasting...
Watch out for
- Extremely limited safety data: Only 47 human subjects have been formally studied, all receiving a single 5 mg dose. No long-term safety data, repeated-dose...
- Original study safety: In the 1978 trial, no adverse effects were reported at the 5 mg dose. Dr. Hansl reportedly self-experimented extensively without...
- Community reports: Anecdotal reports from nootropic users generally describe PRL-8-53 as well-tolerated, with occasional reports of mild headache, jaw...
- Unknown interactions: No drug interaction studies have been conducted. Caution is warranted when combining with dopaminergic or serotonergic medications...
- Unregulated status: PRL-8-53 is not approved for medical use in any country and is sold as a research chemical. Purity and accurate dosing cannot be...
The science, if you're curious.
- Animal studies suggest PRL-8-53 may potentiate dopamine signalling, supporting attention, working memory, and the motivational salience needed for memory...
- May enhance acetylcholine transmission in memory-related circuits, potentially explaining its effects on consolidation and retrieval of verbal information
- Early pharmacological profiling suggested partial serotonin-enhancing activity, which could contribute to improved cognitive flexibility and information...
- The 1978 study's results - with benefits most apparent in delayed recall at 24 hours and one week - suggest PRL-8-53 primarily strengthens the consolidation...
Where to find it
- Research chemical vendors: Available from select nootropic suppliers as powder or pre-dosed capsules, typically in 5 mg units
- No pharmaceutical production: PRL-8-53 has never been manufactured by a pharmaceutical company and has no approved medical use anywhere in the world
- Powder form: Most commonly available as the hydrochloride salt in powder form, requiring accurate milligram-scale measurement
- Solution form: Some vendors offer PRL-8-53 in liquid solution for volumetric dosing precision
Frequently asked
A synthetic nootropic developed at Creighton University that showed dramatic improvements in word recall in a double-blind study - with subjects over 30 showing 80-100% improvement, though research remains extremely limited to a single 1978 trial.
The main benefits people report from PRL-8-53 are: Cognitive Enhancement, Creativity, Focus, Memory, Motivation.
Research dosage: 5 mg was the single dose used in the only human clinical trial, administered orally before the learning taskCommunity-reported range: 5-10 mg per dose is the most commonly reported range among nootropic users, taken 30-60 minutes before cognitively demanding tasksSublingual use: Som...
Extremely limited safety data: Only 47 human subjects have been formally studied, all receiving a single 5 mg dose. No long-term safety data, repeated-dose...Original study safety: In the 1978 trial, no adverse effects were reported at the 5 mg dose. Dr. Hansl reportedly self-experimented extensivel...
Animal studies suggest PRL-8-53 may potentiate dopamine signalling, supporting attention, working memory, and the motivational salience needed for memory...May enhance acetylcholine transmission in memory-related circuits, potentially explaining its effects on consolidation and retrieval of verbal i...
Rate PRL-8-53
Log in to leave an overall rating.
What people are saying
Log in to leave a comment.
No comments yet. Be the first to share your experience.