Unfortunately since herbal products are not regulated in the same way as medication then we do not have reference material for an absolute list of interactions. If you have noticed that your blood pressure has gone up since taking the herbal remedy then I would suggest that you stop straight away.
We do not have any information on the safety of this medication, but we do know that some chinese medication can damage the liver.
I would suggest that you now change to a low calorie diet and exercise program to continue your weight loss. The exercise will also have a positive impact on your blood pressure over time too.