“My honest opinion of Sildenafil is that it’s is helpful…everyone is different but all PdE5 drugs usually give me a headache and cause nasal congestion. But I think the benefits outweigh the side effects. And I don’t always have the side effects, which is weird. I’d suggest starting at the lowest possible dosage that you get results from. Id also suggest that if you’ve never taken it before, try it on your own first to see how long it takes to start working, or if it works for you. You might be surprised at how fast it starts working”