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?
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Three Chamber Heart -- Circulatory System
Defibrillator. Defibrillators are devices that supply a voltage charge to the heart in the hope of r
Patient teaching: heart assessment
Desmosomes and gap junctions, as shown in heart muscle.