Sildisoft Tablets Best for choosing the right dose based on your health and medical history. Licensed pharmacist: Can explain the strength, how to take it, and possible interactions. Product leaflet: Check the exact strength and manufacturer's instructions. Sildisoft is listed in 50 mg and Sildisoft Tablets  strengths by its manufacturer. Sunrise Remedies +1 General dosage information For sildenafil used to treat erectile dysfunction, a typical prescribed dose is 50 mg as needed, about one hour before sexual activity. Depending on effectiveness and side effects, a clinician may adjust it to 25 mg or 100 mg. Do not take it more than once in 24 hours. SILDENAFIL tablet, film coated Important: Never take sildenafil with nitrate medicines, such as nitroglycerin, or combine it with other erectile dysfunction medicines without medical advice.