Tizanidine is a short-acting muscle relaxer that's marketed under the brand name Zanaflex. It is used to treat muscle spasms caused by certain conditions such as multiple sclerosis, ALS, or spinal cord injury.It is also prescribed off-label for certain headache disorders, symptoms of fibromyalgia, and as a sleep aid.Tizanidine works by blocking nerve impulses that are sent to your brain.izanidine (Zanaflex) Interactions. Do not take tizanidine if you are also taking the antidepressant fluvoxamine (Luvox) or the antibiotic ciprofloxacin (Cipro). Let your doctor know all other medicines you are taking before he prescribes tizanidine.
Structure of the Double Helix. Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups.
double helix (Watson-Crick helix) the structure of deoxyribonucleic acid (DNA), consisting of two coiled chains, each of which contains information completely specifying the other chain.elix. 1. spiral (2). 2. the superior and posterior free margin of the pinna of the ear. Î±-helix, alpha helix the structural arrangement of parts of protein molecules in which a single polypeptide chain forms a right-handed helix stabilized by intrachain hydrogen bonds.