I Wastaking A 160MG25MG Varsatan Tablet Once Daily For Hypertention.

I wastaking a 160MG25MG Varsatan tablet once daily for hypertention. This pill was about 1/2 in long, slender and pinkish. It was working really well but when I called in for a refill, they sent me a 160 MB Varsatan that was brown and oval. I assumed the manufacturer had just changed formula and continued use. My blood pressure is out of control again and I can't seem to find anyone who can identify the the pill that was working.
g