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Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Everyone has one nostril that is larger than the other.
Did you know?
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.