Confidence votes 81. It cost about $500-$800 worth a year's supply of diapers for the first year.The next years may or may not cost more, the same, or less.
Cyclobenzaprine, sold under the brand name Flexeril among others, is a muscle relaxer medication used to relieve skeletal muscle spasms and associated pain in acute musculoskeletal conditions. It is the best-studied drug for this application. It has also been used off-label for fibromyalgia treatment.
This muscle relaxant is, by far, one of the most effective medications that I have ever taken. Flexeril works by blocking nerve impulses (or pain sensations) that are sent to your brain. Taking Flexeril enables my body to relax and stop tensing up, which in itself is an effective way in relieving pain.