· This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. It continues to work for up to 4 hours, although its action is usually less .There is a problem with information submitted for this request. The amount of medicine that you take depends on the strength of the medicine. Epistaxis was reported higher in sildenafil-treated patients with a concomitant oral vitamin K antagonist. Children 1 year of age and older weighing 20 kg or less—10 mg 3 times a day. Occasionally patients may be asked to monitor their blood pressure and pulse after being newly prescribed sildenafil, after an increase in dosage, or after the addition of CYP3A4 inhibitors. You may take this medicine with or without food.Sildenafil is a medication used in the management and treatment of erectile dysfunction and pulmonary arterial hypertension. It is in the phosphodiesterase-5 inhibitor (PDE5-I) class of medications. This activity describes the indications, actions, adverse effects, and contraindications of sildenafil as an agent in the clinical setting. Knowledge . AdComplete the Online Consultation with our Doctor. Personalize Your Needs. If Appropriate, Get a Prescription for ED from RexMD®. Free Shipping AvailableFree Shipping · Discreet Packaging · Personalized Plan · Real DoctorsSexual health: Premature Ejaculation · Erectile Dysfunction · Breakouts. Viagra is a prescription medicine used to treat the symptoms of erectile dysfunction. Learning about dosages, side effects, drug interactions, warnings, and more. VIAGRA was administered to over patients (aged years) during pre-marketing clinical trials worldwide. Over patients were treated for longer than one year.Do not use more of it and do not use it more often than your doctor ordered. Your doctor may adjust your dose if needed. In pulmonary hypertension it works by relaxing blood vessels in the chest. Sorry something went wrong with your subscription Please, try again in a couple of minutes Retry. Keep out of the reach of children. The trial results revealed that sildenafil had improved the patients’ depression, anxiety, and self-esteem. Taking sildenafil alone will not cause an erection.

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