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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.
For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.