Special patient instructions comes with sildenafil. Read the directions carefully before you start using sildenafil and each time you get a refill of your medicine. If you are using the oral liquid, shake the bottle well for at least 10 seconds before measuring each dose. Use the oral syringe provided in the package to measure each dose. This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. It continues to work for up to 4 hours, although its action is usually less after 2 hours. Use only the brand of this medicine that your doctor prescribed. The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so. If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist. Call your doctor right away if you have serious side effects. Call 911 if your symptoms feel life-threatening or if you think you’re having a medical emergency. Serious side effects and their symptoms can include the following: Disclaimer: Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we cannot guarantee that this information includes all possible side effects. This information is not a substitute for medical advice. Prednisone 40 mg a day Amoxil chewable tablets Clonidine mg Azithromycin chlamydia Viagra Sildenafil. they have dosage forms in 25 mg. The dosage for Cialis for once daily use may be increased to 5 mg if necessary. Learn about Viagra Sildenafil Citrate may treat, uses, dosage, side effects, drug. nitrites in any form is therefore contraindicated see CONTRAINDICATIONS. DOSAGE FORMS AND STRENGTHS. VIAGRA is supplied as blue, film-coated, rounded-diamond-shaped tablets containing sildenafil citrate equivalent to 25. White to off-white powders containing 1.57 g of sildenafil citrate (equivalent to 1.12 g of sildenafil) in a bottle intended for constitution. Following constitution with 90 m L of water, the volume of the oral suspension is 112 m L and the oral suspension contains 10 mg/m L sildenafil. A 2 m L oral syringe (with 0.5 m L and 2 m L dose markings) and a press-in bottle adaptor are also provided. Contact Pfizer Safety to report an adverse event, side effect or concern about the quality of a Pfizer product: (800) 438-1985 You may also contact the U. Food and Drug Administration (FDA) directly to report adverse events or product quality concerns at 1-800-FDA-1088 or gov/Med Watch If you are looking for information about Pfizer studies currently recruiting new patients in your area, you can begin your search on our website. For questions about a Pfizer Clinical Trial, call (800) 718-1021 or email Pfizer Rx Pathways® connects eligible patients, regardless of their insurance status, to a range of assistance programs that offer insurance support, co-pay help, and medicines for free or at a savings. For more information, please call (844) 989-7284 or visit Eligible patients can register for valuable savings offers for nearly 40 brand name medications. Revatio PO: 5 mg or 20 mg 3 times daily, administered 4-6 hours apart IV: 2.5-mg or 10-mg bolus 3 times daily if patient is temporarily unable to take PO Recommended PO/IV dose not to be exceeded Adding Revatio to bosentan does not have any beneficial effect on exercise capacity Not to be prescribed to children (1-17 years) for pulmonary arterial hypertension (PAH); this recommendation against use is based on long-term clinical pediatric trial showing that children taking high doses had higher risk of death than children taking low doses and that low doses were not effective in improving exercise ability (see Cautions) Elicits vasodilatory properties, resulting in mild and transient decreases in blood pressure Use with caution in patients with anatomic deformation of penis (eg, angulation, cavernosal fibrosis, or Peyronie disease), conditions potentially predisposing to priapism (eg, sickle cell anemia, multiple myeloma, or leukemia), cardiovascular disease, bleeding disorders, active peptic ulcer disease, liver disease, renal impairment, multidrug antihypertensive regimens, retinitis pigmentosa, concomitant use of CYP3A4 inhibitors Pulmonary vasodilators may significantly worsen cardiovascular status of patients with pulmonary veno-occlusive disease Patient taking alpha blocker should be stabilized before starting phosphodiesterase (PDE)-5 inhibitor, which should be initiated at lowest dose; if patient is already taking optimized dose of PDE-5 inhibitor, alpha blocker should be initated at lowest dose to avoid hypotension Not to be taken with other PDE-5 inhibitors Sudden decrease or loss of hearing, which may be accompanied by tinnitus and dizziness Viagra: Patients should stop sildenafil and seek medical care if a sudden loss of vision occurs in 1 or both eyes, which could be a sign of nonarteritic anterior ischemic optic neuropathy (NAION); use with caution, and only when the anticipated benefits outweigh the risks, in patients with a history of NAION; patients with a ”crowded” optic disc may also be at an increased risk of NAION; advise patients to seek immediate medical attention in the event of a sudden loss of vision Viagra: Potential for cardiac risk with sexual activity in patients with preexisting cardiovascular disease; therefore, treatment for erectile dysfunction generally should not be instituted in men for whom sexual activity is inadvisable because of their underlying cardiovascular status May cause dose-related impairment of color discrimination; use caution in patients with retinitis pigmentosa Evaluate underlying causes of erectile dysfunction or BPH before initiating therapy Revatio: In small, prematurely terminated study of patients with PAH secondary to sickle-cell disease, vaso-occlusive crises requiring hospitalization were more commonly reported by patients who received sildenafil than by those randomized to placebo; effectiveness of sildenafil in PAH secondary to sickle-cell anemia has not been established; the clinical relevance to men treated for erectile dysfunction with sildenafil is not known Revatio: Not for use in children with PAH; increased mortality with increasing doses (hazard ratio 3.5) was observed in randomized, double-blind, placebo-controlled clinical trial of 234 children (1-17 years) with PAH who had mild-to-moderate symptoms at baseline Revatio: Epistaxis occurred in 13% of patients with PAH secondary to connective tissue disease (eg, scleroderma); this effect was not seen in idiopathic PAH; incidence was also higher in those receiving concomitant PO vitamin K antagonist therapy (9%) than in those not receiving such therapy (2%) Limited published data from randomized controlled trials, case-controlled trials, and case series do not report a clear association with sildenafil and major birth defects, miscarriage, or adverse maternal or fetal outcomes when sildenafil is used during pregnancy; there are risks to mother and fetus from untreated pulmonary arterial hypertension Pregnant women with untreated pulmonary arterial hypertension are at risk for heart failure, stroke, preterm delivery, and maternal and fetal death Limited published data from a case report describe presence of sildenafil and its active metabolite in human milk; there is insufficient information about effects of sildenafil on breastfed infant and no information on effects of sildenafil on milk production; limited clinical data during lactation preclude a clear determination of risk of drug to an infant during lactation The above information is provided for general informational and educational purposes only. Individual plans may vary and formulary information changes. Contact the applicable plan provider for the most current information. Sildenafil dosage forms Dosage forms and strengths - FDA, Viagra Sildenafil Citrate Side Effects, Interactions, Warning, Dosage. Does tamoxifen cause tiredness REVATIO for Oral Suspension. White to off-white powders containing 1.57 g of sildenafil citrate equivalent to 1.12 g of sildenafil in a bottle intended for. REVATIO® sildenafil citrate Dosage Forms and Strengths Pfizer.. VIAGRA® sildenafil citrate Dosage Forms and Strengths Pfizer.. Sildenafil, Viagra Generic Facts, Side Effects, Dosage. Does the patient have intolerance to sildenafil generic Revatio tablets? ❑ Yes ❑ No. Is the patient unable to ingest a solid dosage form e.g. an oral tablet or. The starting dosage of sildenafil citrate is 50 mg one hour before sexual activity. This eMedTV page also lists the maximum recommended sildenafil citrate dose 100. See risks and benefits of VIAGRA® sildenafil citrate. Talk to your doctor about VIAGRA® and the right dose to help treat erectile dysfunction ED.