noun
- a bitter crystalline alkaloid derived from cinchona bark, used as a medication to treat irregular heart rhythms
Usage: medical
Examples
- The cardiologist prescribed quinidine to regulate the patient’s atrial fibrillation.
- Quinidine is extracted from the bark of the cinchona tree.
- The doctor monitored the patient carefully while administering quinidine.
- Side effects of quinidine may include nausea and dizziness.
- Quinidine has been used for decades to treat heart arrhythmias.
- The pharmacist explained that quinidine should be taken with food.