Hi I Have A Bottle Of Turmeric That I Purchased

Hi
I have a bottle of turmeric that I purchased about a year ago. The expiration date is May 2017. The bottle has been opened. Is it ok to start taking it for an anti-inflammatory and help with circulation? I just wonder if it will be effective since it's been opened. It doesn't have an odor. I can take it to my pharmacy but I thought you might know. Thanks Christi