Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Benicar HCT is having olmesartan and Hydrochlorthiazide combination. Olmesartan is contraindicated in CKD (chronic kidney disease) patients. So better not to take Benicar HCT. Continue with labetalol (as advised by Nephrologist) and lisinopril. Strict control of diabetes is also needed. Hope I have answered your query. Let me know if I can assist you further.