Digital ulcers [associated with systemic sclerosis] for sildenafil By mouth 25 mg 3 times a day, increased to 50 mg 3 times a day. This medication is taken with or without food an hour before sex. Read and follow these instructions carefully before you start using sildenafil and each time you get a refill of your medicine. How to take tablets Swallow tablets whole with a drink of water or juice but not grapefruit juice. The effects may be increased because of slower removal of the medicine from the body. Doses for children can range from 10mg to 20mg taken 3 times a day, depending on their weight. Children younger than 1 year of age—Use and dose must be determined by your doctor.The recommended starting dose for Viagra is 1 tablet (50 mg) by mouth 1 hour before sexual activity. But depending on your response to the medication, you can . View sildenafil information, including dose, uses, side-effects, renal impairment, 25 mg 3 times a day, increased to 50 mg 3 times a day. For phosphodiesterase type-5 inhibitors, prescription potentially inappropriate (STOPP criteria) in severe heart failure characterised by hypotension i.e. systolic blood pressure less than 90 mmHg, or. AdSave on 50, Brand Name & Generic Drugs With SingleCare®. Get Your Free Rx Coupon Now! Save Up to 80% on Prescriptions at Over 35, Pharmacies Nationwide with a Free Rx Coupon/5 (2, reviews)Site visitors: Over K in the past month.