Hydrocodone

Quinidine-mediated inhibition of CYP2D6 may prevent conversion to active metabolite hydromorphone, reducing analgesic/antitussive effects.

Coadministration causes respiratory depression and sedation, sometimes resulting in death. Gabapentin decreases hydrocodone exposure; monitor for altered effects.

7 DRUG INTERACTIONS Alcohol Clinical Impact: Concomitant use of alcohol with hydrocodone bitartrate extended-release capsules can result in an increase of hydrocodone plasma levels and potentially fatal overdose of hydrocodone. Intervention: Instruct patients not to consume alcoholic beverages or use prescription or non-prescription products containing alcohol while on hydrocodone bitartrate extended-release capsules therapy [see Clinical Pharmacology ( 12.3 )] . Inhibitors of CYP3A4 and CYP2D6 Clinical Impact: The concomitant use of hydrocodone bitartrate extended-release capsules and CYP3A4 inhibitors can increase the plasma concentration of hydrocodone, resulting in increased or prolonged opioid effects.

Concomitant use increases risk of respiratory depression through actions at different CNS receptor sites.

Narcotic analgesics fentanyl, hydrocodone, oxycodone, meperidine ↑ fentanyl ↑ hydrocodone ↑ oxycodone ↑ meperidine Careful monitoring of therapeutic and adverse effects (including potentially fatal respiratory depression) is recommended when fentanyl, hydrocodone, oxycodone, or meperidine is concomitantly administered with PAXLOVID.

7 DRUG INTERACTIONS No specific drug interaction studies have been conducted with hydrocodone bitartrate and homatropine methylbromide. (7.5) Monoamine Oxidase Inhibitors (MAOIs) : Can potentiate the effects of hydrocodone. (7.7) Diuretics : Hydrocodone may reduce the efficacy of diuretics.Monitor for reduced effect.

Mixed agonist/antagonist and partial agonist opioids may reduce analgesic effect of tapentadol and/or precipitate withdrawal symptoms. Concomitant use should be avoided.

If urgent use of an opioid is necessary, use test doses and frequent titration of small doses of other opioids (such as oxycodone, hydrocodone, oxymorphone, hydrocodone, or buprenorphine) to treat pain while closely monitoring blood pressure and signs and symptoms of CNS and respiratory depression.

If urgent use of an opioid is necessary, use test doses and frequent titration of small doses of other opioids (such as oxycodone, hydrocodone, oxymorphone, hydromorphone, or buprenorphine) to treat pain while closely monitoring blood pressure and signs and symptoms of CNS and respiratory depression.

If urgent use of an opioid is necessary, use test doses and frequent titration of small doses of other opioids (such as oxycodone, hydrocodone, oxymorphone, or buprenorphine) to treat pain while closely monitoring blood pressure and signs and symptoms of CNS and respiratory depression.

If urgent use of an opioid is necessary, use test doses and frequent titration of small doses of other opioids (such as oxycodone, hydrocodone, oxymorphone, hydrocodone, or buprenorphine) to treat pain while closely monitoring blood pressure and signs and symptoms of CNS and respiratory depression.

If urgent use of an opioid is necessary, use test doses and frequent titration of small doses of other opioids (such as oxycodone, hydrocodone, oxymorphone, hydrocodone, or buprenorphine) to treat pain while closely monitoring blood pressure and signs and symptoms of CNS and respiratory depression.

CYP3A4 and 2D6 Inhibitors Clinical Impact: The concomitant use of APADAZ and CYP3A4 inhibitors can increase the plasma concentration of hydrocodone, resulting in increased or prolonged opioid effects. After stopping a CYP3A4 inhibitor, as the effects of the inhibitor decline, the hydrocodone plasma concentration will decrease [see Clinical Pharmacology ( 12.3 )] , resulting in decreased opioid efficacy or a withdrawal syndrome in patients who had developed physical dependence to hydrocodone. CYP3A4 Inducers Clinical Impact: The concomitant use of APADAZ and CYP3A4 inducers can decrease the plasma concentration of hydrocodone [see Clinical Pharmacology ( 12.3 )] , resulting in decreased efficacy or onset of a withdrawal syndrome in patients who have developed physical dependence to hydrocodone [see Warnings and Precautions ( 5.16 )] .

Drug Interactions Inhibitors of CYP3A4 and CYP2D6 The concomitant use of hydrocodone bitartrate and acetaminophen tablets and CYP3A4 inhibitors, such as macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g., ketoconazole), and protease inhibitors (e.g., ritonavir), can increase the plasma concentration of the hydrocodone from hydrocodone bitartrate and acetaminophen tablets, resulting in increased or prolonged opioid effects. These effects could be more pronounced with concomitant use of hydrocodone bitartrate and acetaminophen tablets and both CYP3A4 and CYP2D6 inhibitors, particularly when an inhibitor is added after a stable dose of hydrocodone bitartrate and acetaminophen tablets is achieved [see WARNINGS ]. After stopping a CYP3A4 inhibitor, as the effects of the inhibitor decline, the hydrocodone plasma concentration will decrease [see CLINICAL PHARMACOLOGY ], resulting in decreased opioid efficacy or a withdrawal syndrome in patients who had developed physical dependence to hydrocodone bitartrate and acetaminophen tablets.

7 DRUG INTERACTIONS No specific drug interaction studies have been conducted with hydrocodone bitartrate and homatropine methylbromide. (7.5) Monoamine Oxidase Inhibitors (MAOIs): Can potentiate the effects of hydrocodone. (7.7) Diuretics: Hydrocodone may reduce the efficacy of diuretics.

Drug Interactions Inhibitors of CYP3A4 and CYP2D6 The concomitant use of hydrocodone bitartrate and ibuprofen tablets and CYP3A4 inhibitors, such as macrolide antibiotics (e.g., erythromycin), azole-antifungal agents (e.g. ketoconazole), protease inhibitors (e.g., ritonavir), can increase the plasma concentration of hydrocodone, resulting in increased or prolonged opioid effects. These effects could be more pronounced with concomitant use of hydrocodone bitartrate and ibuprofen tablets and CYP2D6 and CYP3A4 inhibitors, particularly when an inhibitor is added after a stable dose of hydrocodone bitartrate and ibuprofen tablets are achieved (see WARNINGS: Risks of Concomitant Use or Discontinuation of Cytochrome P450 3A4 Inhibitors and Inducers ).

7 DRUG INTERACTIONS No specific drug interaction studies have been conducted with Hydrocodone Polistirex and Chlorpheniramine Polistirex. ( 7.6 ) Monoamine Oxidase Inhibitors (MAOIs): Can potentiate the effects of hydrocodone. ( 7.8 ) Diuretics : Hydrocodone may reduce the efficacy of diuretics.

In the case of prodrugs whose actions are actually mediated by P450 IID6 -produced metabolites (for example, codeine and hydrocodone , whose analgesic and antitussive effects appear to be mediated by morphine and hydromorphone, respectively), it may not be possible to achieve the desired clinical benefits in poor metabolizers.

In the cases of prodrugs whose actions are actually mediated by P450 IID6 -produced metabolites (for example, codeine and hydrocodone , whose analgesic and antitussive effects appear to be mediated by morphine and hydromorphone, respectively), it may not be possible to achieve the desired clinical benefits in poor metabolizers.