Examples of agents known to cause acquired methaemoglobinaemia
| Prescribed medication | Illicit drugs | Over-the-counter products |
|---|---|---|
| Dapsone | Methamphetamine (‘crystal meth’) | Benzocaine gel/spray |
| Trimethoprim | Mephodrone (‘snow’/‘meow’) | Fava beans |
| Metoclopramide | Cocaine (‘coke’/‘blow’/‘crack’) | Inorganic nitrate fertiliser |
| Sodium valproate | Amyl nitrate (‘poppers’) | |
| Cloroquine | MDAI (‘woof woof’/‘pink panthers’) | |
| Zopiclone | ||
| Lidocaine | ||
| Methylene blue |