My husband has been on avastin for 6 months(12 treatments starting in Nov. 2012) and his bp has been high throughout and even higher recently. He went without treatment for a month, then had his first 'maintenance' treatment 5-22-13(bp 140's/80's). A week later I took his bp and it had jumped up to an average of 170/90 throughout the day. His oncologist added another Rx to his daily pill regimen that seems to be working. The oncologist's nurse had inferred that my husband's bp should have returned to normal (115-125/70's) after being off the avastin for a month; but I'm left wondering.