Phenytoin Flashcards
1
Q
Should you use injectable phenytoin
A
No - risk of severe harm and error
2
Q
What route should you take
A
IV
3
Q
What vitamin should you use with it
A
Vitamin D
4
Q
Range of phenytoin
A
10-20 (everyone older than 3 months)
6-15 (under 3 months)
5
Q
What are the three signs of toxicity
A
Nystagmus, rash, blood and skin disorders
6
Q
What electrolyte imbalance can phenytoin cause
A
Hyperkalemia
7
Q
Is it an enzyme inducer or inhibitor
A
Inducer so decreases concs of Doacs, Bupropion, Buspirone, Carbamezapine, Ciclosporin, COC, valproate
8
Q
Phenytoin and miconazole
A
Increases phenytoin toxicity
9
Q
Amiodarone and phenytoin
A
Increases conc of phenytoin
10
Q
Side effects of phenytoin
A
P-45 inducer
Hirutism
Enlarged gums
NYstagamus
Teratogenic
Osteopenia
Interferes with folic acid
Neuropathy
11
Q
A
