Do not take Viagra more than once per day. Copyright 1996-2010 Cerner Multum, Inc. Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). Do not take Viagra while also taking Revatio, unless your doctor tells you to. Erectile dysfunction what if a girl takes viagra attributed to organic (58%; generally not characterized, but including diabetes and excluding spinal cord injury), psychogenic (17%), or mixed (24%) etiologies.
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Revision Date: 06/30/2010 2:28:31 PM. Viagra side effects Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Patients with heart problems who take Viagra may be at increased risk for heart-related side effects, including heart attack or stroke. The approximately 4,000-fold selectivity for PDE5 versus PDE3 is important because PDE3 is involved in control of cardiac contractility. In the first study, a single oral dose of Viagra 100 mg or matching placebo was administered in a 2-period crossover design to 4 generally healthy males with benign prostatic hyperplasia (BPH). ADVERSE EVENTS REPORTED BY ≥2% OF PATIENTS TREATED WITH Viagra AND MORE FREQUENT ON DRUG THAN PLACEBO IN PRN FLEXIBLE-DOSE PHASE II/III STUDIES Adverse Event Percentage of Patients Reporting Event Viagra N=734 PLACEBO N=725 * Abnormal Vision: Mild and transient, predominantly color tinge to vision, but also increased sensitivity to light or blurred vision. Before taking Viagra Do not take Viagra if you are also using a nitrate drug for chest pain or heart problems. How is Viagra Supplied Viagra (sildenafil citrate) is supplied as blue, film-coated, rounded-diamond-shaped tablets containing sildenafil citrate equivalent to the nominally indicated amount of sildenafil as follows: 25 mg 50 mg 100 mg Obverse VGR25 VGR50 VGR100 Reverse PFIZER PFIZER PFIZER Bottle of 30 NDC-0069-4200-30 NDC-0069-4210-30 NDC-0069-4220-30 Bottle of 100 N/A NDC-0069-4210-66 NDC-0069-4220-66 Recommended Storage Store at 25°C (77°F); excursions permitted to 15–30°C (59–86°F) [see USP Controlled Room what if a girl takes viagra Hepatic Insufficiency In volunteers with hepatic cirrhosis what if a girl takes viagra A and B), sildenafil clearance was reduced, resulting in increases in AUC (85%) and Cmax (47%) compared to age-matched volunteers with no hepatic impairment. Sexual function data were also recorded by patients in a daily diary. Ritonavir greatly increased the systemic level of sildenafil in a study of healthy, non-HIV infected volunteers (11-fold increase in AUC, see Drug Interactions.) Based on what if a girl takes viagra pharmacokinetic data, it is recommended not to exceed a maximum single dose of 25 mg of Viagra in a 48 hour period. Do not drive or perform other possibly unsafe tasks until you know how you react to it. Four of the five patients had no what if a girl takes viagra risk factors for ischemic optic neuropathy. Ocular side effects have included mild and transient blue or colored-tinged vision, sometimes what if a girl takes viagra with photosensitivity or blurred vision. Pharmacokinetics in Special Populations Geriatrics Healthy elderly volunteers (65 years or over) had a reduced clearance of sildenafil, resulting in approximately 84% and 107% higher plasma AUC values of sildenafil and its active N-desmethyl metabolite, respectively, compared to those seen in healthy younger volunteers (18–45 years). During sexual activity, if you become dizzy or nauseated, or have pain, numbness, or tingling in your chest, arms, neck, or jaw, stop and call your doctor right away. Information for Patients Physicians should discuss with patients the contraindication of Viagra with regular and/or intermittent use of organic nitrates. Percentage of Patients Reporting an Improvement in Erections. Reported events include those with a plausible relation to drug use; omitted are minor events and reports too imprecise to be meaningful: Body as a whole: what if a girl takes viagra edema, photosensitivity reaction, shock, asthenia, pain, chills, accidental fall, abdominal pain, allergic reaction, chest pain, accidental injury.
Several cases of optic neuropathy have been associated with sildenafil use. Dermatologic Dermatologic side effect have included rash which was reported in at least 2% of patients. Absorption and Distribution Viagra is rapidly absorbed. What should I avoid while taking Viagra? Avoid drinking alcohol, which can increase some of the side effects of Viagra. Viagra must never be used by men who are taking medicines that contain nitrates of what if a girl takes viagra kind, at any time. • FINDING THE RIGHT DOSE FOR YOU Viagra comes in different doses (25 mg, 50 mg and 100 mg). Visual disturbances occurred more commonly at higher levels of sildenafil exposure. A review of population subgroups demonstrated efficacy regardless of baseline severity, etiology, race and age. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. One randomized, double-blind, placebo-controlled, crossover, flexible-dose (up to 100 mg) what if a girl takes viagra of patients with erectile dysfunction resulting from spinal cord injury (n=178) was conducted. Hepatic Insufficiency In volunteers with hepatic cirrhosis (Child-Pugh A and B), sildenafil clearance was reduced, resulting in increases in AUC (85%) and Cmax (47%) compared to age-matched volunteers with no hepatic impairment. Do not start or stop taking any medicines before checking with your doctor or pharmacist. In addition, patients were asked a global efficacy question and an optional partner questionnaire was administered. The following events occurred in <2% of patients in controlled clinical trials; a causal relationship to Viagra is uncertain. Before taking Viagra, tell your doctor about all other medications you use for erectile dysfunction, or if you are using any of the following medications: bosentan (Tracleer); cimetidine (Tagamet, Tagamet HB); conivaptan (Vaprisol); diclofenac (Arthrotec, Cataflam, Voltaren, Flector Patch, Solareze); imatinib (Gleevec); isoniazid (for treating tuberculosis); rifampin (Rifadin, Rimactane); an antidepressant such as nefazodone; an antibiotic such as clarithromycin (Biaxin), dalfopristin/quinupristin (Synercid), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin) or telithromycin (Ketek); an antifungal medication such as clotrimazole (Mycelex Troche), itraconazole (Sporanox), ketoconazole (Nizoral), or voriconazole (Vfend); heart or blood pressure medication such as diltiazem (Cardizem, Dilacor, Tiazac), doxazosin (Cardura), nicardipine (Cardene), quinidine (Quinaglute, Quinidex, Quin-Release), or verapamil (Calan, Covera, Isoptin,Verelan); or HIV/AIDS medicine such as atazanavir what if a girl takes viagra delavirdine (Rescriptor), fosamprenavir (Lexiva), indinavir (Crixivan), nelfinavir what if a girl takes viagra saquinavir (Invirase), or ritonavir (Norvir).