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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.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
By definition, when a medication is administered intravenously, its bioavailability is 100%.
In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.