As a subject matter expert in pharmacology, I can provide you with information on the half-life of medications. The half-life of a drug is the time it takes for the concentration of the drug in the body to decrease by half. Dronedarone is a medication used to treat certain types of arrhythmia, which is an irregular heartbeat. The half-life of dronedarone is approximately 13 to 19 hours. This means that if you were to take a dose of dronedarone, after about 13 to 19 hours, the amount of the drug in your system would be reduced by half. It's important to note that the half-life can vary between individuals due to factors such as age, liver and kidney function, and other health conditions. Additionally, the half-life is just one factor that healthcare providers consider when determining the appropriate dosing schedule for a medication. read more >>

Dronedarone is extensively metabolized and has low systemic bioavailability; its bioavailability is increased by meals. Its elimination half life is 13�C19 hours. Because of presystemic first pass metabolism the absolute bioavailability of dronedarone without food is low, about 4%.read more >>