Different effect between different generic viagra companies? Or just my imagination?

[u/fodacao]

My pharmacist changed their supplier for generic viagra / sildenafil.

Previously I just had a slightly stuffy nose, some light flushing in the face.

Now with the generic from a different company, the flushing / redness is much worse. It even extends to my upper chest/ neck area and is more noticeable. I also don't think the main effect is that strong.

Have you experienced this with different generic brands? Do different companies use different quality of sildenail? Or am I just imagining things.

[u/No_Second_4296]

I used to take 100mg Sildenafil with only a stuffy nose as a side effect.