I dated a Chinese woman from Vietnam at one time who's lower BP number was 170. The upper was 200 something. She's in her late 40s now and aside from the doctors freaking out when they take her BP, she's never had any health problems. She refuses to do anything about it, too.
I think you should look at diet before commiting to drugs for the rest of her life. I think this is the great problem with western medicine, they almost never consider any course but drugs and surgery. My mom was put on some drug for HBP and in a year's time, she was on seven more, each an attempt to counteract the side effects of the one before. She was feeling sick all the time from it. I convinced her to stop the drugs and eat a non fat diet, which she did (for a while), felt better, and the BP went down.
Check out a diet course by a Dr. McDougal. Essentially, it's a 0 fat diet. I was on it for years (until I got married) and would prefer to still be on it.
Eating good means different things to different folks. It seems a lot of modern ailments are caused by diet, and diet is almost always ignored by western medicine.
Good luck!
L