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).
Flexeril, a generic variety of the medication cyclobenzaprine, is a muscle relaxer that is usually prescribed for the short-term relief of muscle spasms. Flexeril is also sometimes used for long-term conditions such as chronic fatigue syndrome and fibromyalgia.owever, Soma is not as widely prescribed as other muscle relaxers because it may become addictive. Soma has a strong sedative effect and also causes headaches, skin rashes, dizziness, vomiting, increased heart rate and clumsiness.