When I was in India in 2015 I decided to take a chance on sildenafil at a pharmacy. No Rx required and cost was under $1 per pill. The pills were red and came in a blister pack with a UK company on the package. I tried a piece of one which worked fine with no side effects. I don't have ED but I'm in my 70's so need a little help to keep Mr. Softy away. I always cut them down to a quarter or third. On later trips I've bought them in Bhutan, Nepal, Argentina, Chile and Panama. All the pills did the job. In fact once I took a bit more than usual and it made me so hard that my wife got sore down there. So now I'm more careful about the dose.