A 57 year old male has recently been diagnosed with Hypertension. He has had high blood pressure readings in the GP surgery over the past 4 months; 156/92, 154/96, 162/94 and he has had similarly high readings at home. Blood tests are unremarkable and the patient has no past medical history of note. Lifestyle changes are discussed with him including weight loss, healthy eating and doing regular exercise.
If treatment is initiated what would be first line?