Drug interactions Flashcards
What antibiotics interact with theophylline?
Macrolides eg arithromycin, clarithromycin
What two rugs interact with macrolide antibitoics?
Stantins
Theophylline
What do ACE inhibitors do with respect to sulfonylureas?
Increase hypoglycaemic effect.
What pathway does gradefuit juice block? What drug does this effect?
Cytochrome P450. Interferes with statins - causes more muscle aches.
What medicine does st johns wort interfere with?
Oral contraceptive pill.
What is a type A drug reaction?
Augmented pharmacologic effects
- dose dependent and predictable
What is a type B reaction?
Bizarre effects (or idiosyncratic) - dose independent and unpredictable
What is a type C reaction?
Chronic effects
What is a type D reaction?
Delayed effects
What is a type E reaction?
End of treatment effects.
What is a type F reaction?
Failure of treatment
What condition can long term treatment with beta blockers cause?
Diabetes
What condition an long term treatment with NSAIDS cause?
Hypertension
What is important management in type C treatment?
Monitoring
What does abrupt stopping of beta blockers cause?
Angina