Sildenafil oral tablet doesn’t cause drowsiness, but it can cause other side effects. More common side effects. The more common side effects of sildenafil can include: Oral (or nasogastric tube): Infants, Children, and Adolescents: Initial: 0.5 mg/kg/dose upon admission to ICU; increase in 0.5 mg/kg/dose increments every 4 to 6 hours up to a maximum dose of 2 mg/kg/dose as tolerated; upon discontinuation of mechanical ventilation, sildenafil therapy can be tapered over 5 to 7 days; dosing based on a retrospective report of 100 pediatric patients (including. Sildenafil citrate 100 mg starting dose in men with erectile dysfunction in an international, double-blind, placebo-controlled study: effect on the sexual experience and reducing feelings of anxiety about the next intercourse attempt. High dose sildenafil citrate as a salvage therapy for severe erectile dysfunction. McMahon CG(1). Author information: (1)Australian Centre for Sexual Health, St Luke's Hospital Complex, Sydney, Australia. cmcmahon@mail.usyd.edu.au Maximum dose of sildenafil citrate - ForSaleOnline. Maximum dose of sildenafil citrate - Get Pills. Brand and Generic products for sale. 100% secure bill. Your doctor will start you on the VIAGRA dose he thinks is right for you. For most men, the recommended dose is 50 mg. Based on effectiveness and toleration, the dose may be increased to a maximum recommended dose of 100 mg or decreased to 25 mg. Usual Adult Dose for Erectile Dysfunction. 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 Sildenafil citrate is a white to off-white crystalline powder with a solubility of 3.5 mg/mL in water and a molecular weight of 666.7. VIAGRA is formulated as blue, film-coated rounded-diamond-shaped tablets equivalent to 25 mg, 50 mg and 100 mg of sildenafil for oral administration. 200 mg Sildenafil Citrate products are now available in the market and buyers are now wondering if it is safe to take any of those products. The common Viagra or Sildenafil Citrate dose recommendation for patients is only 25 mg to 100 mg of Sildenafil Citrate; however, Sildenafil Citrate tablets with the 200 mg strength are now on the rise. 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 mg) and factors that can affect your dosage (such as other drugs you may be taking).