Located in southeastern New Mexico, Carlsbad Caverns lie beneath the Earth's surface and were formed when limestone was dissolved by sulfuric acid during the last ice age.
There are three types of rate control medications: Beta Blockers, which slow the heart rate and relax the blood vessels. Examples include Atenolol (TenorminÂ®), Carvedilol (Coregâ¢), Metoprolol (Toprol XLâ¢, LopressorÂ®), and Sotalol (BetapaceÂ®)
Midodrine may cause a decrease in the heart rate. Caution should be used when midodrine is given in other medications that may also reduce the heart rate such as cardiac glycosides, tricyclic antidepressants, beta blockers, and other agents.