Difference Between R039 Vs S901 Yellow Xanax Pills

R039 Pill Identification  The pill with an R039 imprint has been identified as 2mg Alprazolam (Xanax ) manufactured and supplied by Actavis. A four-sided 1-mg pill and yellow oval Xanax are the other shapes and strengths that are available. Alprazolam is a class of medications called benzodiazepines which act on the brain and nerves (central nervous system) to produce a calming effect. […]

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