My urologist's cialis script ran dry and I haven't been to the doc yet for a refill, so decided to check out the generic (Indian) route. I tried viabestbuys and got some viagra pretty cheap, and tried a 100mg pill a couple of nights ago. The pill worked great for 4 - 6 hours, got me hard and let me cum a couple times, but every lightbulb I looked at developed a bluish tinge around it for about 4 hours. I understand that is one of the common side effects of Viagra - but with prescription Cialis I get the most horrible heartburn for days, which necessitates popping antacid pills. Do you guys have a preference when it comes the picking between the two side effects?