1- General Flashcards
1A2 cytochrome P450 Isozyme substrate examples ? Inducers ? Inhibitors ?
Theophylline
Acetaminophen
Aromatic hydrocarbons ( smoke ) Cruciferous vegetables
Quinolones
Macrolides
2C9 cytochrome P450 Isozyme substrate examples ? Inducers ? Inhibitors ?
Phenytoin
Warfarin
General inducers of cytochrome P450 isozymes
No inhibitors
2D6 cytochrome P450 Isozyme substrate examples ? Inducers ? Inhibitors ?
Many cardiovascular and CNS drugs
No inducers
Haloperidol
Quinidine
SSRIs
3A4 cytochrome P450 Isozyme substrate examples ? Inducers ? Inhibitors ?
60 % of drugs in PDR
General inducers
General inhibitors
Grapefruit juice
General inducers of cytochrome P450 isozymes ?
Anticonvulsants ( barbiturates , phenytoin , carbamazepine)
Antibiotics ( rifampin )
Chronic alcohol
General inhibitors of cytochrome P450 isozymes ?
Antiulcer medications ( cimetidine , omeprazole )
Antimicrobials ( chloramphenicol, macrolides , ritonavir , ketoconazole )
Acute alcohol
Drugs that cause drug induced systemic lupus ?
Hydralazine
Procainamide
Isoniazid
Morphine is activated by ?
Glucuronidation
Chloramphenicol causes grey baby syndrome in neonates due to reduced activity of ?
Glucuronidation
Examples for drugs with zero order elimination rate ?
Ethanol
Phenytoin
Salicylates
Equation of half life of a drug ?
T = .7 x ( Vd / Cl )
Infusion rate equation ?
Infusion rate = Cl x Css
Loading dose equation ?
Loading dose = ( Vd x Cp ) / f
Maintenance dose equation ?
Maintenance dose = ( Cl x Css x T ) / f
Examples for hormones that act through intracellular receptors ?
Glucocorticoids
Thyroid hormones
Gonadal steroids
Vitamin D