Of all the "boner fixers" Muse is the most expensive. The cost of these suppositories is far more than the cost of the injectable.
I have an E.D. diagnosis and I have been down the whole road and have been a "happy camper" for over two years now. The "happy" part started when the rest was bypassed and we went to Quadmix.
The secret with Quadmix is getting the titration correct and learning the injection technique. Once you have it down, this is simple, easy, and believe it or not, close to painless.
The secret with either Trimix or Quadmix is to buy it in quantity. A six month supply of this will end up cheaper than the orals per dosage including the cost of the syringe.
Muse works just fine, the burning takes a little getting used to, but to me it is just a matter of cost and satisfaction.
If you have any questions you may message me personally and I will get back to you as soon as I can.
Good Luck.