CYP 1A2 Review Flashcards
Fluvoxamine
CYP 1A2 Inducer, Substrate or Inhibitor?
POTENT INHIBITOR
substrate
Clozapine
CYP 1A2 Inducer, Substrate or Inhibitor?
major substrate
Carbamazepine
CYP 1A2 Inducer, Substrate or Inhibitor?
Inducer
St. John’s Wort
CYP 1A2 Inducer, Substrate or Inhibitor?
Inducer
TCAs
CYP 1A2 Inducer, Substrate or Inhibitor?
Substrate
Tobacco/smoking
CYP 1A2 Inducer, Substrate or Inhibitor?
Inducer
Fluoxetine
CYP 1A2 Inducer, Substrate or Inhibitor?
Inhibitor
Caffeine
CYP 1A2 Inducer, Substrate or Inhibitor?
INHIBITOR
+substrate
Olanzapine
CYP 1A2 Inducer, Substrate or Inhibitor?
Substrate
Duloxetine
CYP 1A2 Inducer, Substrate or Inhibitor?
Substrate
Mirtazapine
CYP 1A2 Inducer, Substrate or Inhibitor?
Substrate
Paroxetine
CYP 1A2 Inducer, Substrate or Inhibitor?
Inhibitor
Modafinil
CYP 1A2 Inducer, Substrate or Inhibitor?
Inducer
Sertraline
CYP 1A2 Inducer, Substrate or Inhibitor?
Inhibitor
Theophylline
CYP 1A2 Inducer, Substrate or Inhibitor?
Substrate
OCP
CYP 1A2 Inducer, Substrate or Inhibitor?
Strong Inhibitor
Estradiol
CYP 1A2 Inducer, Substrate or Inhibitor?
Strong Inhibitor
Ciprofloxacin
CYP 1A2 Inducer, Substrate or Inhibitor?
Inhibitor
Risperidone
CYP 1A2 Inducer, Substrate or Inhibitor?
Substrate
Asenapine
CYP 1A2 Inducer, Substrate or Inhibitor?
Substrate
Phenytoin
CYP 1A2 Inducer, Substrate or Inhibitor?
Inducer
Haldol
CYP 1A2 Inducer, Substrate or Inhibitor?
Susbtrate
What effect would prescribing fluvoxamine have on Clozapine levels in a patient already on clozapine
would increase clozapine levels–> fluvoxamine is a potent 1A2 inhibitor and clozapine is a 1A2 substrate
What effect would prescribing carbamazepine have on duloxetine levels if they were to be co prescribed
decreased duloxetine levels–> carbamazepine is an inducer of 1A2, and duloxetine is a 1A2 substrate
Name an antidepressant you should not prescribe with theophylline
fluvoxamine –> potent 1A2 inhibitor
–> also avoid sertraline, fluoxetine and paroxetine, but fluvoxamine is the worst
St. Johns Wort can work to DECREASE levels of which psychiatric medications?
Clozapine
Duloxetine
Fluvoxamine
Olanzapine
Mirtazapine
TCAs
Risperidone
Asenapine
Haldol
list the CYP 1A2 inhibitors
Fluvoxamine +++
Fluoxetine
Paroxetine
Sertraline
OCP ++
Estradiol ++
Caffeine
Cipro, cimetidine, fluoroquinolones
List the inducers of CYP 1A2
Carbamazepine
St. Johns Wort
Phenytoin
Modafinil
Phenobarbital
Tobacco/Smoking
Rifampin, ritovanir, omeprazole
List the substrates of CYP1A2
Clozapine
Fluvoxamine
Duloxetine
Mirtazapine
Olanzapine
TCAs
Risperidone
Asenapine
Haldol
Agomelatine
Ropinirole
Theophylline
Warfarin
Caffeine
Naproxen