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®)
These medicines lower high blood pressure by opening up (dilating) the blood vessels. This allows blood to flow more easily, which lowers blood pressure. Some of these medicines need to be combined with other medicines to counteract the body's natural tendency to retain fluid and increase heart rate when there is a sudden drop in blood pressure.