Interactions Flashcards

1
Q

What does it typically interact with?

A

Enzyme inducer
Griseofulvin

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2
Q

Enzyme inducers

A

Carbamazepine
Griseofulvin
Phenytoin
Phenobarbital
St. Johns wort
Rifampicin
Rifabutin

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3
Q

EHC

A
  • Copper IUD
  • 3 mg of levonorgestrel (unlicensed)
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4
Q

Ulipristal

A

Efficacy reduced by drugs that increase gastric pH
- Antacids
- H2 receptor antagonists
- PPIs

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5
Q

Regular contraception

A

Use until 4 weeks after stopping interacting drug
- Copper IUD
- Progesterone only injections

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