PiHKAL
 Cover of PiHKAL, 1st ed. | |
| Author | Alexander and Ann Shulgin |
|---|---|
| Subject | Pharmacology, Autobiography, Psychoactive drugs |
| Publisher | Transform Press |
| Publication date | 1991 |
| Publication place | United States |
| Media type | Paperback |
| Pages | 978 |
| ISBN | 0-9630096-0-5 |
| OCLC | 269100404 |
| Followed by | TiHKAL (1997) |
PiHKAL: A Chemical Love Story, also known as Phenethylamines I Have Known and Loved, is a book by Alexander Shulgin and Ann Shulgin published in 1991. The subject of the work is psychoactive phenethylamine chemical derivatives, notably those that act as psychedelics and/or entactogens. The book has two halves, with the second part containing detailed entries on 179 phenethylamines. PiHKAL was followed by TiHKAL: The Continuation (Tryptamines I Have Known and Loved) (1997).