It only comes in one dose: 50mg. If it is not treated right away, priapism can permanently damage your penis sudden vision loss in one or both eyes. Next review due on August 01, The most common side effects of VIAGRA: headache; flushing; upset stomach; abnormal vision, such as changes in color vision such as having a blue color tinge and blurred vision; stuffy or runny nose; back pain; muscle pain; nausea; dizziness; rash. With Viagra, you get the iconic blue diamond-shaped pill and the brand-name box. Patients should always ask their doctors for medical advice about adverse events.CHOOSE BRAND-NAME VIAGRA. The original little blue pill prescribed by doctors for over 20 years. Clinically proven to treat men with erectile dysfunction (ED) Ongoing Missing: packaging. This means that 4 hours after you take a dose, your body has cleared half of the dose. In most cases, it takes about 5 half-lives for your body to completely remove a Missing: packaging.  · Sildenafil for oral suspension contains sildenafil, which is the same medicine found in another medicine called VIAGRA ®. VIAGRA is used for the treatment of .