The majority of drug metabolism is catalyzed by the cytochrome ...

[strangeaffliction]

The majority of drug metabolism is catalyzed by the cytochrome p-450 group of enzymes. When these enzymes are inhibited, a drug simultaneously given will:
 
  A. reach higher-than-intended levels in the body.
  B. be inhibited and levels in the body will drop.
  C. have no effect in the body.
  D. create the potential for anaphylaxis.

Question 2

Phenytoin (Dilantin) is prescribed for a patient with seizures. You know that this drug is gradually increased to achieve a desired level. The patient is taught that maintenance doses for this medication are typically:
 
  1. 50 mg to 75 mg daily.
  2. 100 mg to 250 mg daily.
  3. 300 mg to 400 mg daily.
  4. 450 mg to 500 mg daily.

[hugthug12]

Answer to Question 1

A

Answer to Question 2

3
The usual adult dose of phenytoin (Dilantin) is 100 mg PO 3 times daily initially then gradually increased to achieve desired serum levels. Maintenance doses are usually 300 mg to 400 mg dai-ly.

[strangeaffliction]

TYSM

[recede]

Excellent