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).
7 Reviews. Cyclobenzaprine is the generic form of Flexeril, a prescription muscle relaxer that relieves pain and discomfort caused by strains, sprains, and other muscle injuries. It is also available under the brand names Amrix, Fexmid, and FusePaq Tabradol. This medication is often part of an overall recovery plan that includes rest and physical therapy. Cyclobenzaprine is also prescribed off-label to treat fibromyalgia.