It’s difficult to compare MUSE to a tablet like Viagra, because the scenarios they’re used in are a little different.
In clinical studies, Viagra (sildenafil) has a higher rate of effectiveness in clinical trials, ranging from 63% for the lowest dose and going up to 82% for the highest dose.
Another study carried out in a UK hospital found that sildenafil had a 91% success rate.
A review of MUSE in clinical practice found it was 56% effective.
It’s important to remember though that MUSE is generally only used by men who can’t take oral tablets or have tried them and found they haven’t worked. So for these men, MUSE may be much more useful and effective than Viagra, because Viagra isn’t an option for them at all.