I have one. I'm not really sure why I don't use it more. I forget to I guess? I dunno. I filled it up after I took them an hour ago, though. Can't wait to get off this med. Only reason I'm still on it is because my pdoc thinks it'd be prudent to give a higher dose a try for good measure, just in case. This might be my last AD I try though. At least for now. No use beating a dead horse (I mean the meds don't work for me). I digress.