Codeine Phosphate
Formula: C18H21NO3
Bioavailability: Oral: ~90%
Other names: 3-Methylmorphine,Codeine,anhydrous,Codicept
Onset of action: 15–30 minutes
Elimination half-life: 2.5–3 hours
Duration of action: 4–6 hours
Addiction liability: High
Tramadol 200mg
Formula: C16H25NO2
Onset of action: Less than 1 hour (by mouth)
Molecular Weight: 263.37 g/mol
Duration of action: 6 hours
Other names: Ultram, Conzip, Rybix ODT, and Ultram ER.
Drug class: Opiate analgesic
Melting point: 180 to 181 °C (356 to 358 °F)
Excretion: Urine (95%)