frameshift mutation / frame-shift mutation; frameshift. A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called nucleotides.
As for Flexeril (cyclobenzaprine) is is not a controlled substance under US, Canadian, or international law. Some drugs used as muscle relaxants ARE controlled substances like Valium and many US states and countries have listed Soma (carisoprodol) as a controlled substance (or prohibited it).
As far as I know this medication (Mobic) is prescribed for arthritis. For pain I took a muscle relaxer Flexeril and it worked since the first day I took it. In 2 days I was pain free in my neck, arms and shoulders after having non stop pain and numbness for months. Read More. My Dr. had prescribed my Flexeril 10mg for my back spasms.