Hmmmm, I know that when I take my mestinon, my eyes open up, and I get more usage(is that a correct word??) out of my arms and legs, ie if before I take my mestinon my arms arnt working, I may find it difficult to lift my legs or wash the dishes, after taking mestinon its easier, not 100%, but not as much of an effort as before. Hope this little explination helps you know how mestinon helps me. take care
ps just did a quick google and a runny nose can be a side affect of mestinon, which thankfully I cant say Ive had, just all the other unpleasant ones!!