Hydrocodone, also known as dihydrocodeinone, is a semisynthetic opioid used to treat pain and as a cough suppressant. It is taken by mouth.
| Clinical data | |
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| Trade names | Hysingla ER, Zohydro ER |
| Other names | Dihydrocodeinone, hydrocodone bitartrate |
| AHFS/Drugs.com | Monograph |
| MedlinePlus | a601006 |
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| Dependence liability | High |
| Addiction liability | High |
| Routes of administration | Clinical: by mouth Others: intranasal, rectal |
| Drug class | Opioid |
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| Pharmacokinetic data | |
| Bioavailability | By mouth: 70% |
| Protein binding | Low |
| Metabolism | Liver: CYP3A4 (major), CYP2D6 (minor) |
| Metabolites | • Norhydrocodone • Hydromorphone • Others |
| Onset of action | 10–20 minutes |
| Elimination half-life | Average: 3.8 hours Range: 3.3–4.4 hours |
| Duration of action | 4–8 hours |
| Excretion | Urine |
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| ECHA InfoCard | 100.004.304 |
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Most of the time it is dispensed as the combination acetaminophen/hydrocodone or ibuprofen/hydrocodone for pain severe enough to require an opioid and in combination with homatropine methylbromide to relieve cough. It is also available by itself in a long-acting form under the brand name Zohydro ER, among others, to treat long-term severe pain.