Learn how to monitor your own blood pressure and pulse at home, and share the results with your doctor. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Carvedilol is only part of buy generic carvedilol online complete program of treatment for hypertension that may also include diet, exercise, and weight control. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. COREG has little effect on plasma catecholamines, plasma aldosterone, or electrolyte levels, but it does significantly reduce plasma renin activity when given for at least weeks.