Some ingredients found in “Herbal Supplements” and/or over the counter (as well as prescription) medications can trigger psychosis. Although psychosis usually occurs with chronic use of these drugs or in very high doses, Ephedra-Free doesn’t equate to lack of ephedra-related psychiatric disorders. Herbal supplements, such as ma-huang, can also trigger psychosis.
Psychosis is a rare and relatively idiosyncratic adverse effect of many other medications. These include isotretinoin, indomethacin, several antibiotics, and antiviral drugs.
Psychosis may be induced by intoxication with recreational drugs, such as:
- Inhalants (solvents, aerosols, gases, nitrites).SOURCE: Epocrates