Being an extract of animal heart tissue, this peptide is used in any condition affecting the heart, for example, atrial fibrillation, heart failure and hypertension. The Chelohart peptide preparation has been used at a dose of two capsules daily for a month, and the repeat a cycle of two capsules a day for 10 days each month. Reduce the frequency of these cycles to every two, three or four months, as the condition improves.