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Interaction Check

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Selected Drugs Clear All

  • remove Cerebyx
    fosphenytoin
  • remove clobazam
    generic
  • remove Qudexy XR
    topiramate
  • remove rufinamide
    generic
  • remove Sucraid
    sacrosidase
  • remove Valtoco
    diazepam nasal

multicheck MultiCheck Results - 10 Interactions

Smiley face Smiley face

Avoid/Use Alternative

Smiley face Smiley face clobazam (generic) + Valtoco (diazepam nasal)

Avoid/Use Alternative


clobazam + diazepam

use alternative or monitor respiratory rate; use lowest effective doses and shortest duration of concomitant tx: combo may incr. risk of profound CNS and respiratory depression, psychomotor impairment, other adverse effects (additive effects, duplicate therapy)

Monitor/Modify Tx

Smiley face Smiley face Cerebyx (fosphenytoin) + clobazam (generic)

Monitor/Modify Tx


fosphenytoin + clobazam

monitor respiratory rate: combo may incr. clobazam active metabolite levels, risk of CNS and respiratory depression, psychomotor impairment, other adverse effects (hepatic metabolism induced, incr. active metabolite formation, additive effects)

Smiley face Smiley face Cerebyx (fosphenytoin) + Qudexy XR (topiramate)

Monitor/Modify Tx


fosphenytoin + topiramate

monitor phenytoin levels: combo may incr. phenytoin levels, risk of toxicity; may decr. topiramate levels, efficacy; may incr. risk of CNS depression, psychomotor impairment (hepatic metabolism inhibited; hepatic metabolism induced; additive effects)

Smiley face Smiley face Cerebyx (fosphenytoin) + rufinamide (generic)

Monitor/Modify Tx


fosphenytoin + rufinamide

monitor phenytoin levels: combo may incr. phenytoin levels, risk of toxicity; may decr. rufinamide levels, efficacy; may incr. risk of CNS depression, psychomotor impairment (mechanism unknown; hepatic metabolism induced; additive effects)

Smiley face Smiley face Cerebyx (fosphenytoin) + Valtoco (diazepam nasal)

Monitor/Modify Tx


fosphenytoin + diazepam

monitor respiratory rate, phenytoin levels; use lowest effective doses and shortest duration of concomitant tx: combo may incr. or decr. phenytoin levels, incr. risk of adverse effects or decr. efficacy; may decr. diazepam levels, efficacy; may incr. risk of profound CNS and respiratory depression, psychomotor impairment (mechanism unknown, hepatic metabolism possibly altered; hepatic metabolism induced; additive effects)

Smiley face Smiley face clobazam (generic) + Qudexy XR (topiramate)

Monitor/Modify Tx


clobazam + topiramate

monitor respiratory rate: combo may incr. clobazam and active metabolite levels, risk of CNS and respiratory depression, psychomotor impairment, other adverse effects (hepatic metabolism inhibited, additive effects)

Smiley face Smiley face clobazam (generic) + rufinamide (generic)

Monitor/Modify Tx


clobazam + rufinamide

monitor respiratory rate: combo may incr. risk of CNS and respiratory depression, psychomotor impairment (additive effects)

Smiley face Smiley face Qudexy XR (topiramate) + Valtoco (diazepam nasal)

Monitor/Modify Tx


topiramate + diazepam

monitor respiratory rate, use lowest effective doses and shortest duration of concomitant tx: combo may incr. diazepam levels, risk of profound CNS and respiratory depression, psychomotor impairment, other adverse effects (hepatic metabolism inhibited, additive effects)

Smiley face Smiley face rufinamide (generic) + Valtoco (diazepam nasal)

Monitor/Modify Tx


rufinamide + diazepam

monitor respiratory rate, use lowest effective doses and shortest duration of concomitant tx: combo may incr. risk of profound CNS and respiratory depression, psychomotor impairment (additive effects)

Caution Advised

Smiley face Smiley face Qudexy XR (topiramate) + rufinamide (generic)

Caution Advised


topiramate + rufinamide

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

Additional Considerations

Smiley face Smiley face topiramate in Qudexy XR

beverages or products containing ethanol are contraindicated within 6h of topiramate extended-release (ER) capsules administration; combo may incr. topiramate release rate, levels, risk of adverse effects, decr. duration of efficacy

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