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Hydrocodone 10 mg is equivalent to about 10 mg of morphine by mouth. [16] Hydrocodone was patented in 1923, while the long-acting formulation was approved for medical use in the United States in 2013. [10] [17] It is most commonly prescribed in the United States, which consumed 99% of the worldwide supply as of 2010. [18]
Each benzhydrocodone/APAP immediate release tablet contains 6.12 mg of benzhydrocodone (equivalent to 6.67 mg of benzhydrocodone hydrochloride) and 325 mg of acetaminophen. The tablets are white, capsule-shaped and are debossed with "KP201" on one side. Dosing should start at one to two tablets every four to six hours, as needed for pain.
Norhydrocodone is the major metabolite of the opioid analgesic hydrocodone. [1] It is formed from hydrocodone in the liver via N-demethylation predominantly by CYP3A4. [1] Unlike hydromorphone, a minor metabolite of hydrocodone, norhydrocodone is described as inactive. [2]
10 mg dihydrocodeine as co-dydramol 10/500, this is also the preparation to be dispensed if no strength is specified on a prescription. 20 mg dihydrocodeine as co-dydramol 20/500 (e.g. branded products Paracod 500/20 and Remedeine). 30 mg dihydrocodeine as co-dydramol 30/500 (e.g. branded products Paracod 500/30 and Remedeine Forte).
Metabolites: Hydromorphone, the major active metabolite, has a 10-33-fold higher binding affinity for the mu-opioid receptor than hydrocodone. It may be up to >100-fold higher in some patients. [ 18 ]
Hydrocodone: 1 10 mg 70% [20] 3.8–6 (Instant Release; PO) 10–30 min (Instant Release; PO) 4–6 Metopon: 1 10 mg Pentazocine lactate (IV) [21] 1 10 mg SC/IV/IM, 150 mg SR-17018: 4 ⁄ 5: 10–12 mg 100% IV (Presumably) Unknown (researches are still being made) 5–10 seconds if used IV and 15-25 min Orally Morphine : 1: 10 mg ~25%: 2–4 3:1
[1] [2] It contains hydrocodone, as the bitartrate, an opioid agonist; and homatropine, as the methylbromide, a muscarinic antagonist. [ 1 ] [ 2 ] It is taken by mouth . [ 1 ] [ 2 ]
Carbonate derivatives of 14β-hydroxycodeine "viz., 14β-hydroxy-6-O-(methoxycarbonyl)codeine, 6-O-methoxycarbonyl-14β-(methoxycarbonyloxy)codeine, and 14β-acetoxy-6-O-methoxy-carbonylcodeine, potential substrates for ring C modification in morphinane (sic) alkaloids, were synthesized for the first time."