[nostrademons]

Technically, the true generic name is para-acetylaminophenol, from which both paracetamol and acetaminophen are derived (and Tylenol, for that matter). That nobody ever calls it para-acetylaminophenol (and that I needed to copy/paste that because I can neither spell nor pronounce it) is a good indication why brand names are preferred over chemical names.

[dreamcompiler]

Pharmacists and doctors just write it APAP. Way shorter and unambiguous. Likewise aspirin is ASA.

[garaetjjte]

.."APAP" is brand name too.