by Erowid
| NAME : | Hydrocodone |
| CHEMICAL NAME : | 4,5a epoxy-3-methyoxy-17-methylmorphinan-6-one tartrate (1:1) hydrate (2:5) |
| ALTERNATE NAMES : | Vicodin (with acetaminophen/paracetamol) |
| CHEMICAL FORMULA | C18H21NO3C4H6O6-2½H2O |
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by Erowid