Excellent point. This is called therapeutic competition — the GLP-1 RA is doing what your other medications were doing, so the combined effect is too much. Any patient on:
- Antihypertensives (ACE inhibitors, ARBs, beta-blockers, diuretics)
- Sulfonylureas (glipizide, glyburide, glimepiride)
- Insulin
- Metformin (to a lesser degree)
...should have proactive dose adjustments as they lose weight and as the GLP-1 RA's own metabolic effects take hold. This should be part of the prescriber's plan from the start, not a reactive adjustment when the patient gets dizzy or hypoglycemic.
Advocate for yourself — ask your doctor: "As I lose weight on this medication, when should we revisit my other prescriptions?"