You can take this medicine with or without food 30 minutes before sex, depending on the dose. Ask your healthcare professional how you should dispose of any medicine you do not use. A herbal Viagra has never been approved as a treatment for erectile dysfunction. Children younger than 1 year of age—Use and dose must be determined by your doctor. Generic versions of sildenafil, vardenafil and tadalafil are available. To use the oral liquid: Shake the bottle well for at least 10 seconds before each use. Alternatively, the medicine may be taken 30 minutes to 4 hours before sexual intercourse. · Warnings. Before taking. Dosage. Side effects. Interactions. FAQ. What is sildenafil? Sildenafil relaxes muscles of the blood vessels and increases blood flow to . AdSay Goodbye to Performance Anxiety and Hello to Improved Sexual Stamina! Trust Our Unbiased Reviews and Improve Your Sexual Health in Confidence!test1.ru has been visited by 10K+ users in the past month. How does sildenafil work? How well does it work for erection problems? Are there any long-term side effects? How does it compare to other medicines that can treat erection .