Why it’s risky: Lithium has a narrow therapeutic window. Even slightly elevated levels can cause kidney damage over time, including a condition called nephrogenic diabetes insipidus.
✅ Safer approach:
- Never adjust your dose without consulting your prescriber
- Get regular blood tests to monitor lithium levels and kidney function
- Stay consistently hydrated—dehydration raises lithium concentration
- Report increased thirst, urination, or swelling to your doctor immediately
5. Certain Blood Pressure Medications (ACE Inhibitors/ARBs in Specific Cases)
Why they’re tricky: ACE inhibitors (like lisinopril) and ARBs (like losartan) actually protect kidneys in many people with diabetes or proteinuria. However, in people with advanced kidney disease or bilateral renal artery stenosis, they can worsen function.
✅ Safer approach:
- These meds are often kidney-protective—don’t stop taking them without talking to your doctor
- Get regular blood tests to monitor kidney function and potassium levels
- Report sudden changes in urination, swelling, or fatigue