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Coreg Cr is in the class of medications called beta blockers. It is given to treat the conditions of hypertension and mild-to-severe chronic heart failure of ischemic or cardiomyopathic origin. Often when it is started, the dose is gradually increased, to prevent side effects which include dizziness, syncope, and hypotension. Similarly, when it is discontinued, it should not be abruptly discontinued (in particular in patients with coronary artery disease). This is because:
Severe exacerbation of angina and the occurrence of myocardial infarction and ventricular arrhythmias have been reported in angina patients following the abrupt discontinuation of therapy with β-blockers. The last 2 complications may occur with or without preceding exacerbation of the angina pectoris. As with other β-blockers, when discontinuation of COREG CR is planned, the patients should be carefully observed and advised to limit physical activity to a minimum. COREG CR should be discontinued over 1 to 2 weeks whenever possible. If the angina worsens or acute coronary insufficiency develops, it is recommended that COREG CR be promptly reinstituted, at least temporarily. Because coronary artery disease is common and may be unrecognized, it may be prudent not to discontinue therapy with COREG CR abruptly even in patients treated only for hypertension or heart failure.
So to answer your question directly, as to whether there is withdrawal when Coreg CR is discontinued, the answer is technically, no, there is not withdrawal, but there can be an exacerbation of the symptoms for which the medication was prescribed, and it should be decreased gradually, and you should be monitored closely for these symptoms by your doctor.
Pain is not listed any where as a side effect of discontinuation of Coreg CR.
Has your doctor been monitoring you? Were lab test done to evaluate your liver and kidney functions (as well as your heart function)?
For those with heart failure, most often other medications are needed such as diuretics, ACE inhibitors, and digitalis. Are you taking any of these medications?
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