I have just taken my first alendronic acid tablet. Is it OK to sip the required amount of water a bit at a time as I find it hard to glug a whole glass full down in one go on an empty stomach when I'm not actually thirsty. I've drunk the glass full but it's taken me a while. Any advice would be appreciated as this is all new to me. Just diagnosed with osteopenia after a compression fracture in the summer. GP kept insisting I had strained a muscle.