I’ve tried Calis and Viagra-related pills and work great. (I’m 45+) and ED was an issue.
So, Calis gives or the “weekend” pill gives strong erections for the whole weekend, and has a bit of delay in them so great fun when you need to get hard any time of the day.
The blue pill, or viagra with sildenafil as the main ingredient works great if you are going to have sex in the next 4 hrs or so.
You can get them at your local sex shop, just ask for the blue or the orange pill, and it would be a matrix-like experience in bed. Some of the generic ones contain the sildena and delaying ingredients. You can then have sex for a very long time, pending the dosage you take. Ask the sex shop for more information, a good shop would give some tips and pointers and these can be inexpensive. Here in the Netherlands, you don’t need a prescription so you have to be a responsible user.
Just a word of caution. The blue one you need to see how your body reacts. A full pill gives me headaches and an erection for hours, plus it delays so if you want marathon sex with a headache then I take a full one. Not recommended for me, great sex but you want to cum at some time. I currently use half or 1/3 of a pill, less headaches and last long enough, 1hr or so, to fully enjoy the experience. I still feel the higher blood pressure but not as bad as a full dose/pill.
There is another word of caution, not to take the orange and blue pill together. I’ve not tried that and don’t want or need to.
Very important! Check with your doctor if you suffer from high blood pressure or any related illnesses. These drugs increase blood pressure and are not suited if you have any condition that could hurt you.
Last word of caution… sometimes the delay can be long, so marathon sex requires a willing partner and time. :)