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    Is it safe to use Viagra without a prescription?

    Viagra (sildenafil citrate) is a prescription drug for erectile dysfunction (ED), but some men use it recreationally with other drugs. This can cause serious side effects, health risks and psychological problems. Learn why you should avoid using Viagra without a doctor's supervision.

    The Viagra Effect: Has It Really Given Sex a Lift? | HISTORY

    The 'little blue pill' helped the world talk about sex. But 20 years after its FDA approval, what has it really done for relationships? ... Small blue Viagra pills, Pfizer's pharmaceutical ...

    Viagra: The Little Blue Pill That Could - MedicineNet

    Viagra: The Little Blue Pill That Could. Once upon a time, there was a little blue pill. Its inventors were trying to treat heart disease and prevent heart attacks and found that the little blue pill could dilate blood vessels. The theory was that angina or chest pain could be decreased when more red blood cells carrying oxygen were delivered ...