Viagra has not been studied in pregnant women. Do not take this medicine in larger or smaller amounts or for longer than recommended.Viagra is usually taken only when needed, 30 minutes to 1 hour before sexual activity. Does Viagra Interact with other Medications? An erection will not occur just by taking a pill. At doses above the recommended dose range, adverse reactions were similar to those detailed in Table 1 below but generally were reported more frequently.When Viagra was taken as recommended (on an as-needed basis) in flexible-dose, placebo-controlled clinical trials of two to twenty-six weeks duration, patients took Viagra at least once weekly, and the following adverse reactions were reported:The following events occurred in < 2% of patients in controlled clinical trials; a causal relationship to Viagra is uncertain. You could be having a serious side effect of sildenafil.Store at room temperature away from moisture and heat.Since Viagra is used as needed, you are not likely to miss a dose.Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.Drinking alcohol with this medicine can cause side effects.Grapefruit and grapefruit juice may interact with sildenafil and lead to unwanted side effects.

Although extensive testing in animals has demonstrated no negative effects on the fetus, Viagra has not been studied in Approximately 15% of persons taking Available for Android and iOS devices. Serious side effects of Viagra include low blood pressure, abnormal ejaculation, and prolonged and painful erections. It is not known whether Viagra is excreted into breast milk.Did you know that certain medical condition may be responsible for ED? Avoid the use of grapefruit products while taking sildenafil.Avoid using any other medicines to treat impotence, such as alprostadil or yohimbine, without first talking to your doctor.heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating;erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis).abnormal vision (blurred vision, changes in color vision)This is not a complete list of side effects and others may occur. recommended not to exceed a maximum single dose of 25 mg of Viagra in a 48 hour Erectile dysfunction is diagnosed by taking the patient's history and physical exam.

Not all possible interactions are listed in this medication guide.Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Viagra only for the indication prescribed.Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.Copyright 1996-2020 Cerner Multum, Inc. The most common side effects are:

Others were reported to have occurred hours to days after the use of Viagra and sexual activity. There are many potential underlying causes of erectile dysfunction, including stress and emotional problems, brain dysfunction, problems with blood supply to the penis, and structural problems with the penis. Erection of the penis occurs when the penis fills with blood. potential additive blood pressure-lowering effects. This includes nitroglycerin, isosorbide dinitrate, and isosorbide mononitrate. Common side effects of Viagra include facial flushing, headaches, stomach pain, nasal congestion, nausea, dizziness, rash, urinary tract infections (UTIs) diarrhea, and an inability to differentiate between the colors green and blue. Consistent with its known You may take it up to 4 hours before sexual activity. The following are discussed in more detail in other sections of the labeling:Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.Viagra was administered to over 3700 patients (aged 19-87 years) during pre-marketing clinical trials worldwide.

Learn about erectile dysfunction causes and treatments such as drugs...Erectile dysfunction (ED, impotence) is the failure to achieve or maintain an erection.

This has occurred in a small number of people taking sildenafil, most of whom also had heart disease, diabetes, high blood pressure, high cholesterol, or certain pre-existing eye problems, and in those who smoked or were over 50 years old.

Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Common side effects of Viagra include facial flushing, headaches, stomach pain, nasal congestion, nausea, dizziness, rash, urinary tract infections (UTIs) diarrhea, and color blindness. Co-administration of In a drug-drug interaction study sildenafil 50 mg given with Viagra (sildenafil) is a phosphodiesterase inhibitor (PDE-5 inhibitor) used to treat impotence (or erectile dysfunction, ED, the inability to attain or maintain a penile erection). Some causes of impotence are medically treatable and...Having erection problems? For most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.