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Interaction Check

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Selected Drugs Clear All

  • remove Elavil
    amitriptyline
  • remove folic acid (vitamin B9)
    generic
  • remove Hycodan
    hydrocodone/ homatropine

multicheck MultiCheck Results - 2 Interactions

Smiley face Smiley face

Avoid/Use Alternative

Smiley face Smiley face Elavil (amitriptyline) + Hycodan (hydrocodone/ homatropine)

Avoid/Use Alternative


amitriptyline + hydrocodone

avoid combo if antitussive use; otherwise use alternative or monitor respiratory rate, BP, serotonin syndrome sx, especially during initiation/titration; decr. dose of one or both drugs, use lowest effective doses and shortest duration of concomitant tx: combo may incr. risk of profound CNS and respiratory depression, psychomotor impairment, severe hypotension (including orthostasis, syncope), serotonin syndrome, severe constipation, paralytic ileus, other anticholinergic adverse effects (additive effects)

Caution Advised


amitriptyline + homatropine

caution advised, especially w/ high environmental temperature: combo may incr. anticholinergic adverse effects, risk of hyperpyrexia (additive effects)

Additional Considerations

Smiley face Smiley face amitriptyline in Elavil

add MAO inhibitor to Interaction Check if recent (14 days) use

Smiley face Smiley face hydrocodone in Hycodan

consider prescribing an opioid overdose reversal agent, especially with concomitant CNS depressant use

benzhydrocodone (prodrug) rapidly converted to hydrocodone; similar interactions anticipated

add MAO inhibitor to Interaction Check if recent (14 days) use

avoid combo with beverages or products containing ethanol and some hydrocodone extended-release (ER) capsules; combo may incr. hydrocodone release rate, levels, risk of adverse effects, including life-threatening overdose, decr. duration of efficacy

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