With more than 40, men across the United States having already switched to their service for generic Viagra, Friday Plans has successfully made the medication more accessible and affordable than ever before. Moving on, we will delve deeper into customer reviews. Common side effects of Sildenafil include: Headache; flushing; upset stomach; abnormal vision, such as changes in color vision such as having a blue tinge and blurred vision; stuffy or runny nose; back pain; muscle pain; nausea; dizziness; rash. This article aims to provide a comprehensive understanding of the Friday Plans experience by examining a range of reviews from real Friday Plans customers. Some people may also have ringing in their ears tinnitus or dizziness.Sildenafil (Viagra, Revatio) is a moderately priced drug used to treat erection problems in men. It is also used to treat pulmonary arterial hypertension, a serious heart and lung . According to price-comparison site , generic Revatio will cost you as little as $ per pill, depending on where you fill your prescription. That’s . View All Screenshots. Check out Friday Plans’ second TV commercial, ‘Generic Tablets 87 Cents Each’ from the Men’s Health industry. Keep an eye on this .