Hi

Minoxidil may cause serious heart problems, including worsening of chest pain. Minoxidil is usually given with beta-blockers to prevent certain heart side effects and with diuretics to prevent serious fluid build-up. If you have severe, uncontrolled high blood pressure or if you take guanethidine, you should only begin taking Minoxidil under direct medical supervision (eg, in a hospital). You will be monitored to prevent side effects, which may occur if your blood pressure lowers too much or too quickly.

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