The cut off value is between 0.9 and 1.1. That means if your result is less than 0.9, you are considered to be negative. And, if your result is higher than 1.1 you are considered to be positive.
So, according to the results you are negative for syphilis. But, you should discuss with your doctor regarding your medications. Your doctor is the only person who can decide you need meds or not.