József Knoll
Hungarian pharmacologist (1925-2018)
József Knoll (May 30, 1925 – April 17, 2018), or Joseph Knoll, was a Hungarian psychopharmacologist known for developing the antiparkinsonian and antidepressant drug selegiline (L-deprenyl).
He developed selegiline in the 1960s and subsequently studied the drug and related agents for many decades. Knoll also developed the concepts of monoaminergic activity enhancers (MAEs) and the mesencephalic enhancer regulation system, among other contributions. MAEs developed by Knoll and colleagues include selegiline, benzofuranylpropylaminopentane (BPAP), and phenylpropylaminopentane (PPAP), among others.
During his scientific career, Knoll published 894 papers and was the originator of 55 patents. As of 2018, his papers had been cited more than 10,000 times. He is described as one of the best-known Hungarian pharmacologists.
Knoll is known for having extensively researched and promoted selegiline for claimed drive- and longevity-enhancing effects related to its MAE activity. He published a book expounding his views on the topic in 2012. Knoll himself began taking a low 1 mg daily dose of selegiline on January 1, 1989 at the age of 64.
Begin with the source’s own compact description: “József Knoll” is hungarian pharmacologist (1925-2018). The dossier treats that line as a proposition to test through József, Knoll and Hungarian, not as a finished interpretation.
Why this record matters
The phrase “hungarian pharmacologist (1925-2018)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Apr 16, 2026. The linked authority identifier is Q1114358. VIAF identifies the subject as 215371516. The Library of Congress control number is n50042379. 2 of 4 selected statements include explicit references; 1 carry qualifiers and 1 use preferred rank. The first chronological checks are 1925, 2018, 2012 and 1989.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “József Knoll”, its source revision and the description used here.
- Expand the search: follow József Knoll primary sources, József Knoll archive and József research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “József Knoll”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “József Knoll” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.