Click here for an email preview. To use the oral liquid: Shake the bottle well for at least 10 seconds before each use. Read and follow these instructions carefully before you start using sildenafil and each time you get a refill of your medicine. Slowly pull back the plunger until the required dose. However the dose is usually not more than 40 mg 3 times a day. If you see air bubbles in the syringe, repeat the steps. If you are a Mayo Clinic patient, this could include protected health information.Generic Viagra (sildenafil) is available as a , , , and milligram (mg) pill and in liquid form. It’s meant to be taken as needed — about an hour before sex — but shouldn’t be. AdSave Time & Money with Online Prescription for Viagra, Cialis, Sildenafil and Tadafil. Free & Private Online Consultant with Real Doctors. Reliable E.D. Meds Shipped test1.ru has been visited by 10K+ users in the past monthTypes: Premature Ejaculation · Privacy Policy · Sexual Health. AdGet a Prescription for ED treatment, discreetly deliverED to your door.4/5 ( reviews).