Slow heartbeat—dizziness, feeling faint or lightheaded, confusion, trouble breathing, unusual weakness or fatigue
How metoprolol works
If signs or symptoms of heart failure develop, treat the patient according to recommended guidelines
At high doses, metoprolol also blocks beta-2 receptors within the lungs and breathing tubes (which may affect breathing)
In addition, metoprolol is used to treat patients with heart failure
Another drugmaker is having to recall metoprolol succinate extended release tablets, a generic for AstraZeneca hypertension drug Toprol XL
Fetal morbidity and death
Two different salts are available, metoprolol tartrate and metoprolol succinate
There are immediate and extended-release preparations available orally
Extended-release products are given once daily