My stomach sucks but does not yet blow

[ceri]

They started me off on 500 mg of metformin once a day, and it made my poor tummy sick for a couple of weeks. But that settled down, and I went to 500 mg twice a day with close to no trouble at all. Now I'm going to 1000 mg twice a day, and it's sick time again. Sing we now the praises of Tums, and I stay out of net arguments to avoid dumping really irrelevant, er, bile.