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Interaction Check

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Selected Drugs Clear All

  • remove Dilantin
    phenytoin
  • remove Epidiolex
    cannabidiol (CBD)
  • remove perampanel
    generic
  • remove Zonisade
    zonisamide

multicheck MultiCheck Results - 6 Interactions

Smiley face Smiley face

Monitor/Modify Tx

Smiley face Smiley face Dilantin (phenytoin) + Epidiolex (cannabidiol (CBD))

Monitor/Modify Tx


phenytoin + cannabidiol

monitor phenytoin levels; consider cannabidiol dose adjustment: combo may incr. phenytoin levels, risk of CNS depression, psychomotor impairment, other adverse effects; may decr. cannabidiol and active metabolite levels, efficacy (hepatic metabolism inhibited, additive effects; hepatic metabolism induced)

Smiley face Smiley face Dilantin (phenytoin) + perampanel (generic)

Monitor/Modify Tx


phenytoin + perampanel

incr. perampanel start dose to 4 mg/day: combo may decr. perampanel levels, efficacy; may incr. risk of CNS depression, psychomotor impairment (hepatic metabolism induced; additive effects)

Smiley face Smiley face Dilantin (phenytoin) + Zonisade (zonisamide)

Monitor/Modify Tx


phenytoin + zonisamide

consider zonisamide dose adjustment: combo may decr. zonisamide levels, efficacy; may incr. risk of CNS depression, psychomotor impairment (hepatic metabolism induced; additive effects)

Caution Advised

Smiley face Smiley face Epidiolex (cannabidiol (CBD)) + perampanel (generic)

Caution Advised


cannabidiol + perampanel

caution advised: combo may incr. risk of CNS depression, psychomotor impairment (additive effects)

Smiley face Smiley face Epidiolex (cannabidiol (CBD)) + Zonisade (zonisamide)

Caution Advised


cannabidiol + zonisamide

caution advised: combo may incr. risk of CNS depression, psychomotor impairment (additive effects)

Smiley face Smiley face perampanel (generic) + Zonisade (zonisamide)

Caution Advised


perampanel + zonisamide

caution advised: combo may incr. risk of CNS depression, psychomotor impairment (additive effects)

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