According to the patint info sheet they do not effect the blood pressure.

I'd think that it would help if your blood pressure was high due to stress, though I don't know for a fact.

They don't effect the blood pressure unless you are in the midst of a panic attack. i am prescribed Xanax for panic attacks and when i have an attack, my blood pressure gets very high. Once the xanax kicks in, it drops my pressure. if you are using them recreationally, they shouldn't effect the BP at all.

Nope... they do not. Maybe the reasons you are taking these pills like stress and anxiety do however.

It has been proven that alprazolam (Xanax) does lower blood pressure temporarily. I am not familiar with studies using valium, but lorazepam (Ativan) has also been shown to lower heart rate and blood pressure. The following link will take you to a NIH study on this issue: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=8944402&dopt=Abstract In another study, it was shown that Xanax can lower the diastolic blood pressure (lower number), while Ativan does not: http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9700978&dopt=Abstract Several studies have shown that patients suffering from high blood pressure and anxiety will experience a lower BP from taking Xanax, but it is not clear whether persons without anxiety should take Xanax for blood pressure. There are several reliable and widely-used medications that lower blood pressure in patients without anxiety. Even if you do suffer from anxiety and high BP, a benzodiazepine should be prescribed for the anxiety, and another med should be prescribed for BP. If you have anxiety and the benzo helps your blood pressure, then great, but rely on blood pressure meds for high blood pressure nevertheless. The benzo effects are temporary, and other meds (such as atenolol) are quite effective at maintaining healthy blood pressure. If you do not have anxiety, do not take a benzo for high blood pressure when there is a plethera of great meds that work very well. And of course, if you have low blood pressure, don't take Xanax or Valium! You can end up in a coma.

Xanax does in fact affect your blood pressure, it can lower it. It states it in many if not all the documentations. I myself have very high blood pressure and my pressure is very hard to control even with blood pressure medication, but when I take Xanax it does in fact lower it to a normal range. The blood pressure medication that I have used is as follows: Catapress, Cardura, Norvasc, and cozaar, and all were tried at different dossages which for most of the time had no affect in lowering my blood pressure. However when I am on Xanax my bloodpressure is at the normal range. In fact the above medications have all caused a side effect of my Heart to beat at a very rapid pace. So the medications had to be stopped. Good luck to all, TS