In the event of an erection that persists longer than 4hours, the patient should seek immediate medical assistance. If priapism is nottreated immediately, penile tissue damage and permanent loss of potency mayresult [see WARNINGS AND PRECAUTIONS]. Physicians should discuss withpatients the potential cardiac risk of sexual activity in patients withpreexisting cardiovascular risk factors. Co-administration of erythromycin, a moderate CYP3A4 inhibitor, resulted in 160% and 182% increases in sildenafil C and AUC, respectively. Co-administration of saquinavir, a strong CYP3A4 inhibitor, resulted in 140% and 210% increases in sildenafil C and AUC, respectively.
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Call your doctor right away if you have blurred vision, confusion, dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly, sweating, or unusual tiredness or buy xanax without prescrition weakness. If you take sildenafil for pulmonary arterial hypertension, do not take Viagra® or other PDE5 inhibitors, including tadalafil (Cialis®) or vardenafil (Levitra®). If you take too much sildenafil or take it together with these medicines, the chance for side effects will be higher.
Before you take VIAGRA, tell your healthcare provider if you:
If they think your condition is more serious, they may tell you to go to a clinic for an in-person, hands-on examination. As a result, you may need more medication to see the same results. In some cases, erectile function may also worsen due to the progression of the underlying disease that is causing ED (e.g., diabetes, vascular disease). Viagra® typically lasts in full effect for about two to three hours after you take the pill. Viagra® can work for up to four or five hours, but you will likely notice that its effectiveness starts to decrease after two or three hours.
Doing so can cause side effects such as headache, dizziness, low blood pressure, priapism (a painful erection that can last for hours), and more. As a brand-name erectile dysfunction medication, Viagra® is significantly more expensive than the generic version of the medication, sildenafil citrate. SILDENAFIL (sil DEN a fil) treats erectile dysfunction (ED). It works by increasing blood flow to the penis, which helps to maintain an erection.
If you experience this during or after sexual intercourse, get in a semi-sitting position and try to relax. If the pain continues beyond 15 minutes then call the emergency services. Feel free to contact our clinical team through your online patient record if you have any other questions about how to take Sildenafil. Grapefruit can increase the risk of experiencing side effects. We recommend you avoid eating grapefruit or drinking grapefruit juice on the days you take this medicine.
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