What's the difference bewteen HCL 500mg METFORMIN and ER 5000mg METFORMIN?
Question posted by peaches51 on 4 Nov 2014
Last updated on 4 November 2014 by RxKnowledge
the 500mg ER formulation is extended release. This reduces the stomach upset associated with the drug. However, it also is a bit pricier and not preferred by physicians. The 500mg IR (immediate release) is a fairly standard dose that can be tapered up simply by changing the dosing around. The ER tablet does not have this luxury.
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