Viagra (sildenafil) is a brand-name prescription drug that’s used to treat erectile dysfunction (ED). Learn about side effects, warnings, dosage, and more.History Sildenafil compound UK, was synthesized by a group of pharmaceutical chemists led by Simon Campbell [55] working at Pfizer’s Sandwich, Kent , research facility in England. Be sure to let your doctor and pharmacist know that you are taking these medications before you start taking sildenafil. What side effects can this medication cause? However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Follow the manufacturer’s directions to use and clean the oral syringe.Viagra is an effective drug for treating male erectile dysfunction, but it targets sexual performance, not sexual arousal. There is limited evidence that Viagra may be beneficial for women with sexual dysfunction, but the . Sildenafil, sold under the brand name Viagra, among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension. It is also sometimes used off-label for the treatment of certain symptoms in secondary Raynaud’s phenomenon. It is unclear if it is effective for treating sexual dysfunction in women. It can be taken orally (swallowed by mouth), intravenously. Dizziness, headache, flushing, or stomach upset may occur. Vision changes such as increased sensitivity to light, blurred vision, or trouble telling blue and green colors apart may also occur. If.Erectile dysfunction is a condition where the penis does not harden and expand when a man is sexually excited, or when he cannot keep an erection. This is likely to lead to dramatic price reductions. Shake the liquid well for 10 seconds before each use to mix the medication evenly. However, if you take sildenafil with a high-fat meal, it will take longer for the medication to start to work. Oral medicine for ED also might not be safe or work well if you have: Very low blood pressure, called hypotension, or uncontrolled high blood pressure, called hypertension. It was initially studied for use in hypertension high blood pressure and angina pectoris a symptom of ischaemic heart disease.

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