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Sildenafil

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More about Sildenafil

VIAGRA (sildenafil citrate) is a prescription medicine used to treat erectile dysfunction (ED). VIAGRA is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED) (1). You will not get an erection just by taking this medicine. VIAGRA helps a man with erectile dysfunction get and keep an erection only when he is sexually excited (stimulated). VIAGRA is not for use in women or children. It is not known if VIAGRA is safe and effective in women or children under 18 years of age.
For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity. However, VIAGRA may be taken anywhere from 30 minutes to 4 hours before sexual activity (2.1) • Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg (2.1) • Maximum recommended dosing frequency is once per day (2.1) Tablets: 25 mg, 50 mg, 100 mg (3) Take VIAGRA exactly as your healthcare provider tells you to take it. • Your healthcare provider will tell you how much VIAGRA to take and when to take it. • Your healthcare provider may change your dose if needed. • Take VIAGRA about 1 hour before sexual activity. You may take VIAGRA between 30 minutes to 4 hours before sexual activity if needed. • VIAGRA can be taken with or without food. If you take VIAGRA after a high fat meal (such as a cheeseburger and french fries), VIAGRA may take a little longer to start working • Do not take VIAGRA more than 1 time a day. • If you accidentally take too much VIAGRA, call your doctor or go to the nearest hospital emergency room right away.
headache • flushing • upset stomach • abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision • stuffy or runny nose • back pain • muscle pain • nausea • dizziness • rash In addition, heart attack, stroke, irregular heartbeats and death have happened rarely in men taking VIAGRA. Most, but not all, of these men had heart problems before taking VIAGRA. It is not known if VIAGRA caused these problems. Tell your healthcare provider if you have any side effect that bothers you or does not go away. These are not all the possible side effects of VIAGRA. For more information, ask your healthcare provider or pharmacist.
Recommended Storage: Store at 25°C (77°F); excursions permitted to 15-30°C (59-86°F) [see USP Controlled Room Temperature].
VIAGRA can potentiate the hypotensive effects of nitrates, alpha blockers, and anti-hypertensives (4.1, 5.5, 7.1, 7.2, 7.3, 12.2) • With concomitant use of alpha blockers, initiate VIAGRA at 25 mg dose (2.3) • CYP3A4 inhibitors (e.g., ritonavir, ketoconazole, itraconazole, erythromycin): Increase VIAGRA exposure (2.4, 7.4, 12.3) ? Ritonavir: Do not exceed a maximum single dose of 25 mg in a 48 hour period (2.4, 5.6) ? Erythromycin or strong CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, saquinavir): Consider a starting dose of 25 mg (2.4, 7.4)
In studies with healthy volunteers of single doses up to 800 mg, adverse reactions were similar to those seen at lower doses but incidence rates and severities were increased. In cases of overdose, standard supportive measures should be adopted as required. Renal dialysis is not expected to accelerate clearance as sildenafil is highly bound to plasma proteins and it is not eliminated in the urine.
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Frequently Asked Questions

We've compiled a list of commonly asked questions for your convenience. If you are unable to find the answer to your question, please contact us for further assistance. It's just one more way UPRx prioritizes your self-care.


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If any of the above sound as awesome to you as they do to us, we can safely say that UPRx is the alternative for you.
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After your order is placed, UPRx will retrieve your valid prescription from your doctor or pharmacy. Once the prescription is confirmed as authorized and corresponding to your order, our participating pharmacy begins to process your order. Depending on the specific drug and location, we can ship out some products as soon as same day, and we commit to shipping out all products within 48 hours of verifying your prescription.
Our site does not support insurance at this time, as we are focusing our efforts on getting you the best cash price. You may not know this, but there are some instances where it’s significantly cheaper to pay cash for a medication rather than to order it through your insurer’s pharmacy benefits program. Here at UPRx, we cut out the middleman and do the negotiating for you- providing you with the same drugs, for less pay.
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