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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
On average, the stomach produces 2 L of hydrochloric acid per day.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.