DILIP HINGORANI answered 2/25/2011 My Blood Sugar Just Shot Up To 316, I'm New Tp This How Can I Bring It Down Fast, Am Light Headed And Woozy? My Fathers Diabetic level shot up to 240 after food in the night, he of course had a full meal and some sweets. He is taking only 1 glycaphage in the morning. Should he take Glycaphage or semi daonil to bring it down, or is there any other way.