Most if not all formula's of hydromorphone are instant release, in the US, however they do make an extended release in the UK. If it's er, do not drink. If theyre ir, they have a very short half-life, and after 7 hours, most of the 2mg has been excreted, regardless of roa, so you should be good to go, however drink plenty of fluids beforehand, this will help along the excretion process.
- Hopeless..