Hypertension. Should be changed.

I am a lupus patient since 16 years and taking HCQS 200 daily. I don't have issues with organs and all my blood reports including kidney function and liver function and bloody sugar and esr are all normal. ECG is normal but I have sinus tachycardia which is managed by Dilzem capsule. 4 years back I started high blood pressure and was on Dilzem CD 120 in morning and Dilzem SR 90 at night but bo never went below 140/90. Recently BP measured 150/100 and dose adjusted as Dilzem CD 120 twice daily (1 -01) It has been one week now with this dosage but bp is still 150/100 and sometimes 140/97 and sometimes 155/110. I will be consulting my cardiologist again but I just like to get some suggestions about whether the medicine should be changed.