Dronedarone is an antiarrhythmic that is FDA approved for the treatment of atrial fibrillation in patients in sinus rhythm with a history of paroxysmal or persistent atrial fibrillation (AF). Dronedarone is multichannel blocker. Common adverse reactions include abdominal pain, diarrhea, indigestion, nausea, vomiting, asthenia and raised serum creatinine. Dronedarone has potentially important pharmacodynamics interactions: Digoxin: Consider discontinuation or halve dose of digoxin before treatment and monitor; Calcium channel blockers (CCB): Initiate CCB with low dose and increase after ECG verification of tolerability; Beta-blockers: May provoke excessive bradycardia, Initiate with low dose and increase after ECG verification of tolerability.

Puerarin (7, 4’-dihydroxyisolavone-8-β-glucopyranoside) is an active isoflavone extracted from the roots of Pueraria lobata (Willd.) Ohwi. Puerarin is widely used in traditional Chinese medicine, and is clinically used in China for the treatment of coronary artery disease, heart failure, hypertension and myocardial infarction. It has been reported that puerarin had therapeutic effects on diabetes mellitus, arteriosclerosis and myocardial ischemia in animals. Puerarin demonstrated beta-adrenergic receptor blocking effect. On the other hand, puerarin stimulated alpha1-adrenoreceptor to increase glucose uptake into cultured C2C12 cells of mice. Puerarin has been investigated for the treatment (phase II clinical trials) of Alcohol Abuse, Rheumatoid Arthritis and Hypertension.

3-Phenylpropionic acid (hydrocinnamic acid, HA) is an end-product of the bacterial degradation of unabsorbed phenylalanine in the intestinal lumen. HA is used in ice cream, drinks, and candy manufacture field as a flavoring agent. In recent years, HA is widely used in the pharmaceutical industry. Hydrocinnamic Acid inhibits the currents of WT and SQT3 syndrome-related mutants of Kir2.1 channel.

Cholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues, and transported in the blood plasma of all animals. The high level of cholesterol in the blood is a marker of hypercholesterolemia, also called dyslipidemia. As a part of homeopathic product, it helps to support general liver and gallbladder health, and is used for temporary relief of symptoms related to adrenal glands such as fatigue and low energy. Cholesterol binds to and affects the gating of a number of ion channels such as the nicotinic acetylcholine receptor (nAChR) Inwardly-rectifying K+ channels (Kir); Transient receptor potential vanilloid 1 channels (TRPV1) and Large-conductance Ca2+-sensitive voltage-gated K+ channels (BK). It was shown the new mechanistic insights into the role of cholesterol in the regulation of nAChR, showing that cholesterol regulates the channels by two distinct mechanisms: stabilization of the channels in a resting state that depends on specific lipid-protein interactions and facilitation of the transitions between uncoupled and coupled states that depends on the hydrophobic thickness of the membrane

Dronedarone is an antiarrhythmic that is FDA approved for the treatment of atrial fibrillation in patients in sinus rhythm with a history of paroxysmal or persistent atrial fibrillation (AF). Dronedarone is multichannel blocker. Common adverse reactions include abdominal pain, diarrhea, indigestion, nausea, vomiting, asthenia and raised serum creatinine. Dronedarone has potentially important pharmacodynamics interactions: Digoxin: Consider discontinuation or halve dose of digoxin before treatment and monitor; Calcium channel blockers (CCB): Initiate CCB with low dose and increase after ECG verification of tolerability; Beta-blockers: May provoke excessive bradycardia, Initiate with low dose and increase after ECG verification of tolerability.