Hello and thank you for using HCM.I carefully read your question and I understand your concern . I will try to explain you something and give you my opinion. You should know that when we treat hypertension our goal is to keep mean blood pressure values below 140 / 90 mmHg.A person might have high or lower blood pressure values during physical and emotional stress so it is mandatory to judge on mean values. If you previously has been diagnosed whith hypertension and you are experiencing lower values the best alternative is to reduse any dosage and not completely stop them. You dont mention the medication names, but in my opinion you should take an appointment with your cardiologyst. The previous medication might be redused in dosage or find the best one adapted for you.Dry mouth might be a side effect of some medications, but is difficult to tell. If I was the treating doctor I will recommend a holter rhythm and pressure monitoring to evaluate your blood pressure values and frequency and then decide the best option for you. Hope I was helpfull. Best regards , Dr.Ervina.