I don't know about the Lasix...it is a much stronger diuretic, and is not usually used as a antihypertensive...mostly for congestive heart failure etc...it works in a different area of the kidney and does reduce blood pressure, but only for short term. HCT is much better for blood pressure...we use the Lasix usually only to get rid of water load in pretty sick people....and then switch them to another drug. People with chronic CHF can be on Lasix every day, but they need it because their hearts are not pumping very well, and the lungs get bogged down.
Hope that helps