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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.