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It will not enhance your erection, sexual performance or help with other conditions, such as premature ejaculation. Population pharmacokinetic data from patients in clinical trials also indicated a reduction in sildenafil clearance when it was co-administered with CYP3A4 inhibitors (such as ketoconazole, erythromycin, or cimetidine) [see DOSAGE AND ADMINISTRATION and DRUG INTERACTIONS]. Selective effect of Viagra in pregnancy/hypertension called intriguing, "preliminary" Urging caution, Osol notes that further study is needed to better understand how and why Viagra aids maternal uterine vascular adaptation and fetal health; whether similar benefits will occur in humans and whether there might be any harmful effects.

Use with caution in patients with the following underlying conditions which can be particularly sensitive to the actions of vasodilators including VIAGRA – those with left ventricular outflow obstruction (e.g., aortic stenosis, idiopathic hypertrophic subaortic stenosis) and those with severely impaired autonomic control of blood pressure. The most common side effects of Viagra include headache, facial flushing, and upset stomach. Prior authorization Many insurance companies require a prior authorization for this drug.

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This could lead to decreased effects of the sildenafil. Viagra should be taken exactly as directed by your doctor.

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Patti Brown, PharmD Q: Is it safe to take Viagra? It is not possible to determine whether these events are related directly to the use of PDE5 inhibitors or to other factors. Viagra, like any medication, has possible side effects and warnings associated with its use. Sexually Transmitted Disease The use of VIAGRA offers no protection against sexually transmitted diseases.

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A second study discussed in the review found that both pre- and postmenopausal women reported no significant positive responses when using Viagra. Before taking this medicine You should not use Viagra if you are allergic to sildenafil, or: if you take other medicines to treat pulmonary arterial hypertension, such as riociguat (Adempas). if you take nitrates. Should I ask him about increasing the dose to 200 mg? Read More My doc also want me to try the antidepressents he gave me zoloft but I read that one of the serious side effects is heart palps, or tachycarida. A: Brand-name prescription drugs are protected under patent. I honestly thought that the diuretics would be enough and I am upset at the thought of taking these drugs long term. Your physician is best able to determine if Viagra is appropriate for you or not. Female Viagra takes about forty-five minutes to take effect and the effects last for four to six hours. After the patent expires, generic companies are allowed to request permission to have the "recipe." Currently, there is no generic for Viagra in the U. Therefore, age > 65, hepatic impairment and severe renal impairment are associated with increased plasma levels of sildenafil. Always keep a current list of the drugs and supplements you take and review the list with your healthcare providers and your pharmacist. The rest of the information was just “blah, blah, blah”. According to the prescribing information, some of the possible side effects associated with Viagra treatment include headache, flushing, dyspepsia (upset stomach, indigestion), nasal congestion, urinary tract infections, abnormal vision, diarrhea, dizziness and rash. Viagra should not be used in any patient who takes nitrates for chest pain. VIAGRA had no effect on ritonavir pharmacokinetics [see DOSAGE AND ADMINISTRATION and DRUG INTERACTIONS].