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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.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.