contraceptives

Question 1

lamotrigine

Answer 1

lamotrigine is lowered by combined OCP
ok with progesterone only
it does not induce enzymes or affect OCP

Question 2

epival

Answer 2

combined OCP may lower it. not clear. it’s one of the most acceptable.
Epival does not affect OCP

Question 3

AED and OCP

Answer 3

AED that induce liver enzyes do not affect depot progesterone, nonhormonal methods, and IU levonogetril
they do affect OCP and progesterone implants

Question 4

AED that induce OCP metabolism

Answer 4

carbamaz, oxcarbaz, phenobar, phentoin, primidone, topamax (less)
Valproate has no effect