Rifampin
Brand: Rifadin
No boxed warning on the current FDA label.
- Caution
- Liver injury; powerful enzyme induction lowers many drug levels; body fluids turn orange-red.
Common side effects
- Harmless orange-red discoloration of urine, sweat, and tears
- Nausea
- Elevated liver enzymes
- Rash
Key interactions
- Powerful enzyme inducer: lowers contraceptive, warfarin, and many other drug levels
- Reduces the effect of DOACs
Counseling points
- Body fluids turn orange-red; soft contact lenses stain permanently
- Use a non-hormonal backup contraceptive during therapy
- Take on an empty stomach
- Liver function is monitored
We ask 7 questions about Rifampin.Practice Rifampin →Test yourself on medications like Rifampin.Practice Medications →
High-yield study aid for exam prep, not a substitute for the package insert or a pharmacist’s dispensing reference.