Do not discontinue abruptly (may worsen angina/raise BP). Use with caution in asthma/COPD, diabetes (may mask hypoglycemia), thyroid disorders, peripheral vascular disease, heart failure, bradycardia, and conduction abnormalities. Monitor blood pressure and pulse regularly. Seek urgent help for severe dizziness/fainting, wheezing, swelling of face/lips, or chest pain worsening.
