60 hypertensive patients , taking antihypertensive drugs and with systolic blood pressure below 160 ( mmHg and diastolic blood pressure below 100 mmHg scheduled for elective surgeries , requiring oral endotracheal intubation and age ranging from 40-65 years were included in this study and randomly divided into Group A ( clonidine 0.2 mg + fentanyl 2 microg/Kg ) and Group B ( Placebo + fentanyl 2 microg/Kg ) .