A:
 In my opinion there is no reason Ramipril can’t be used for blood pressure control at high altitudes.  I am unaware of any FDA warning against people living in high altitude places taking blood pressure lowering medication.  However, going from a lower altitude to a very high altitude can cause an increase in blood pressure and put a strain on the heart.

Someone planning a trip with a significant change in altitude needs to make sure their blood pressure is well controlled and their doctor feels their heart is strong enough to handle the added strain prior to making the trip.

Blood pressure should be monitored while traveling, since blood pressure medication may need to be increased during the trip.  I do not know anything about Chinese medicine for blood pressure. There are doctors in China and in America that have practices combining the best of both eastern and western medicine.  You might want to arrange a consultation.