A 45-year-old female presents with a history of
Raynaudís phenomenon. She also complains of lethargy, anorexia and weight
loss. She has heartburn.
On examination the skin over her hands is tight and
there are multiple telangiectasia over the malar region.
Her blood pressure is 140/100 and this increase is
sustained. Urine proteins ++
Her Investigations are as follows:
Blood urea is 8.7 mmol/l
HB 11.0 g/dL
In this patient the drug of first choice for control
of her blood pressure would be a: