Defense Threat Reduction Agency. When DTRA employees arrive at work every morning, they are addressing the number one national security threat we face as a nation. The threat of WMD is a threat that can change everything about the way in which Americans live their lives. Our mission at the Defense Threat Reduction Agency (DTRA) â to safeguard the United States and its allies from weapons of mass destruction â is of paramount importance for the defense of our country.
Levitra is the brand name for vardenafil, an oral medication used to treat men who have sexual impotence, also known as erectile dysfunction or ED.It's part of a group of drugs known as phosphodiesterase-5 (PDE5) inhibitors.evitra increases venous congestion in that area and helps a man get and keep an erection during sexual intercourse. By itself, Levitra does not cause an erection-there must also be physical stimulation of the penis to achieve an erection.
When considering how to take Levitra, it is important to consider all other medications you are currently taking to avoid negative drug interactions. Certain antibiotics, antidepressants, hypertension medications, and drugs for treating irregular heart rhythms can interact with Levitra.