Atrial Fibrillation, often called AFib in short, is a heart condition that happens when there is an irregular beating of the heart’s atrial chambers, and the heart rate is abnormally fast. Atrial Fibrillation (AFib) is the most common type of heart arrhythmia that starts in the atria.  This heart condition occurs when the heart’s upper chamber is irregular, which results in blood not flowing as it should. Atrial Fibrillation could be just a brief episode, or it may be a long-term condition.
In some cases, AFib may not show signs or symptoms, and in other cases, it could also cause serious health complications. The irregular beating of the heart could cause blood clots to flow to the brain, which can cause other severe health conditions like stroke. 
However, you should not worry too much since treatments promise to work as long as you visit your doctor and receive the treatment early. Your doctor might refer you to a heart specialist known as a cardiologist if necessary. Treatment of Atrial Fibrillation (AFib) is usually in three significant forms: medications, surgery, or nonsurgical procedures. In severe cases, two forms of treatment may be used together.
There are different drugs that the doctor can prescribe for the treatment of Atrial Fibrillation. AFib can cause other health conditions, so you see that the doctor is not prescribing just one medicine. Different medicine performs different functions in the body. The extra medicine and their functions include;