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Thyroid conditions may make getting pregnant impossible.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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).
Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.