I had type 2 diabetes, well-controlled with 500 mg metformin BID.  I have been lax in checking my sugar levels, but over the weekend, sugar was in high 200s, low 300s.  Only thing new is that I started Oxybutynin about three weeks ago.  Could that drug cause a spike in blood sugar? And, if so, can I stop taking it immediately?
Hi, Thank you for your query. I can understand your concerns. Oxybutynin, an antispasmodic does not cause high blood sugar as side effects. It does not interact with metformin. Regards