Janumet (metformin 500 mg + sitagliptin 50 mg) is not known to directly increase creatinine levels, but it should be used cautiously if kidney function is impaired.

🩺 Understanding Your Situation

A creatinine level of 1.8 mg/dL indicates some degree of kidney stress or reduced kidney function, which can occur after major surgery such as bypass surgery. Janumet is generally avoided or closely monitored in patients with kidney impairment because metformin can increase the risk of lactic acidosis, a rare but serious complication linked to decreased kidney function.

⚕️ Medication and Kidney Function

• Janumet does not itself raise creatinine but requires careful kidney monitoring.
• Kidney impairment increases risk of side effects from metformin, so doctors often monitor creatinine before and during treatment.
• Insulin does not typically affect creatinine levels.
• Your creatinine after bypass surgery being 1.8 suggests your doctor should monitor kidney function closely while you use Janumet.

🩺 Recommendations

• Continue regular kidney function tests as advised by your cardiologist or endocrinologist.
• Inform your doctor immediately if you experience symptoms like muscle pain, weakness, unusual tiredness, or breathing difficulties which might suggest lactic acidosis.
• Do not stop or change medications without consulting your doctor.

It is important to coordinate care with your cardiologist and an endocrinologist (diabetes specialist) to ensure safe medication use and kidney health monitoring after bypass surgery.