Any androgenic supp, such as Natadrol will raise your bp if you are prone to it. The question is whether you are happy to persevere while you are running the cycle.
I on a low dose bp med that keeps my bp at 125/75 but if I add in any 'hardcore' stim (1,3 dim, synepherine, etc.) then it pushes my bp up to 135/85 for a few hours after the dose. This means that if I take a fat burner with any of these products my bp will be around 135/85 for the whole day as I will take more than one dose. This is the same with any PH-type product, such as 11-oxo, Natadrol, 6-bromo, etc.
For me the increase in bp when taking any PH type product or hardcore stim isn't worth it so I don't bother. Like most bp sufferers I needed to play around with the dosage and medication before finding a med that lowered my bp without giving me any unpleasant side effects. Now that my bp is at a decent level I don't want to mess around with anything that will change that.
Nowadays there are plenty of good test boosters around (DAA, Erase, Licogenix, Triazole, etc.) that provide a good base for gaining muscle/losing fat without me needing to take something that will spike my bp for several weeks. If you are looking for a standalone product then give either Triazole or Licogenix a try. For a stack DAA with either Licogenix or Erase is hard to beat.