There are three available metformin strengths: 500-mg, 850-mg, and 1000-mg tablets (625-mg and 750-mg tablets were once available but have since been discontinued). A long-acting form of the medication (metformin ER) is also available; it comes in two strengths, 500-mg and 750-mg tablets. Long-acting metformin 1000-mg tablets are also available and are sold under the brand names of FortametÂ® and GlumetzaÂ®. A liquid version of metformin, called RiometÂ®, is also available.
Awns on the fruit of an Australian species of grass. In botany, an awn is either a hair- or bristle-like appendage on a larger structure, or in the case of the Asteraceae, a stiff needle-like element of the pappus. Awns are characteristic of various plant families, including Geraniaceae and many grasses (Poaceae).
Fueled by the daily humidity cycle, the awns induce the motility required for seed dispersal The dispersal unit of wild wheat bears two pronounced awns that balance the unit as it falls. We discovered that the awns are also able to propel the seeds on and into the ground. The arrangement of cellulose fibrils causes bending of the awns with changes in humidity. Silicified hairs that cover the awns allow propulsion of the unit only in the direction of the seeds. This suggests that the dead tissue is analogous to a motor.