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.
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The FDA recognizes 118 routes of administration.
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The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
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Illicit drug use costs the United States approximately $181 billion every year.
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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.
The structure and function of the renal corpuscle.
Models of the α helix, showing different aspects of its structure
Part C - Structure and function of the human brain