This case discusses the pharmacokinetic interaction of caffeine, ethinyl estradiol, and ciprofloxacin, resulting in caffeine toxicity Caffeine is a cytochrome P450 1A2 substrate. Both ciprofloxacin and ethinyl estradiol inhibit 1A2. The physiologic effects of ingestion of high doses of caffeine are also reviewed.
Keywords
- Pharmacokinetic
- Caffeine
- Inhibition
- Inhibitor
- Seizure
- Ethinylestradiol
- Ciprofloxacin
- Methylxanthine
- CYP1A2
- Cytochrome
- P450
- 1A2
- Cafergot
- Adenosine
- Status epilepticus
- Oral contraceptive
- OCPs
- Alertness
- Coffee
- Cola
- Cocoa
- tea
- Cimetidine
- Fluvoxamine