Intezam - I'm not sure where you are reading that harmala alkaloids increase heart rate and blood pressure. Research indicates the opposite.
from
http://www.ncbi.nlm.nih.gov/pubmed/11325023Quote:Three psychological active principles from the seeds of Peganum harmala L., harmine, harmaline and harmalol, showed vasorelaxant activities in isolated rat thoracic aorta preparations precontracted by phenylephrine or KCl with rank order of relaxation potency of harmine > harmaline > harmalol.
from
http://www.ncbi.nlm.nih.gov/pubmed/903860Quote:Each of three harmala alkaloids, harmine, harmaline, and harmalol, decreased heart rate and increased pulse pressure, peak aortic flow, and myocardial contractile force in intact normotensive anesthetized dogs. Harmine reduced systemic arterial blood pressure and total peripheral vascular resistance; harmaline-evoked decreases were frequently followed by a secondary increase; and the effects of harmalol on these two parameters were inconsistent.
In my own experience - daily harmala use has brought my blood pressure down to healthy levels. Next time you dose try checking your own heart rate and blood pressure, see what happens.