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Interaction Check

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Selected Drugs Clear All

  • remove Aubra EQ
    levonorgestrel/ ethinyl estradiol
  • remove Lorcet
    hydrocodone/ acetaminophen
  • remove Odefsey
    emtricitabine/ rilpivirine/ tenofovir alafenamide

multicheck MultiCheck Results - 2 Interactions

Smiley face Smiley face

Avoid/Use Alternative

Smiley face Smiley face Aubra EQ (levonorgestrel/ ethinyl estradiol) + Lorcet (hydrocodone/ acetaminophen)

Avoid/Use Alternative


ethinyl estradiol (contraceptive) + hydrocodone

use alternative or monitor respiratory rate, ECG, consider decr. (benz)hydrocodone dose: combo may incr. hydrocodone levels, risk of CNS and respiratory depression, psychomotor impairment, QT prolongation, cardiac arrhythmias, other adverse effects (hepatic metabolism inhibited)

Monitor/Modify Tx


ethinyl estradiol (contraceptive) + acetaminophen

monitor thrombosis s/sx: combo may incr. ethinyl estradiol levels, risk of thromboembolism, other adverse effects (mechanism unknown)

Additional Considerations

Smiley face Smiley face tenofovir alafenamide in Odefsey

tenofovir alafenamide (prodrug) converted to tenofovir

Smiley face Smiley face hydrocodone in Lorcet

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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