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Life-threatening problems can result when drug interactions between your daily medications cause side effects, and nowhere might that be more clear than with Viagra and high blood pressure ...
Viagra (Sildenafil): Uses, Benefits and Side Effects. This article was reviewed by Kelly Brown MD, MBA.. Whether you’re a senior in high school or a senior-living resident, you’ve likely heard ...
But four medications were linked to a lower risk of mortality during the 12-year study period, including sildenafil (better known as Viagra), the cholesterol drug atorvastatin, the pain reliever ...
Sildenafil, sold under the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. [4] [8] It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud's phenomenon. [9]
Chemical structure of sildenafil (Viagra), the prototypical PDE5 inhibitor. A phosphodiesterase type 5 inhibitor (PDE5 inhibitor) is a vasodilating drug that works by blocking the degradative action of cGMP-specific phosphodiesterase type 5 (PDE5) on cyclic GMP in the smooth muscle cells lining the blood vessels supplying various tissues.
Viagra could lead to more serious side effects, such as: Priapism (a painful, long-lasting arousal) Vision loss. Chest pain. Flu-like symptoms. Heart attack. Stroke. Dizziness. Sudden low blood ...
For example, in clinical trials of sildenafil, 28 percent of men reported headache (by far the most common side effect) at a dosage of 100mg, compared to just 16 percent of men who used 25mg and ...
An increase in sympathetic stimulation to the heart increases contractility and heart rate. An increase in contractility tends to increase stroke volume and thus a secondary increase in preload. An increase in preload results in an increased force of contraction by Starling's law of the heart; this does not require a change in contractility.