Are Fillers Safe for Patient on Blood Pressure Medication?

It should be okay but it is possible but you will most likely experience more bleeding related to the injection process and prolonged bruising if you are taking aspirin or related medication. You should inform your injector prior to your treatment just so that they can make any necessary adjustments to the treatment protocol.

There should not be a problem with using fillers in people who have high blood pressure. If you are on blood thinners, such as aspirin, then there may be more bruising and other side effects so your doctor should speak to you about that.

Blood pressure medications should not be stopped before your filler injections. If you stop them, the increase in blood pressure can increase the bruising. if you take any aspirin even the small one 81mg, you must stop it for at least 2 days, ideally for 2 weeks.
Click on the link to see my instructions to my patients for filler injection preparation.
Regards
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Fillers generally do not have an effect on blood pressure. However, you should bring this to the attention of your physician. Fillers just as Juvederm and Restylane typically are considered safe in patients with this type of history.  

As long as your blood pressure is under control and you are medically stable it should be no problem to have filler injections.