Multi timer or multi alarm app

Don't know if this is the right thread to post this but here it is. I need to find a timer or an alarm app that I can set to go off every 2 hours to remind myself to take some medicine and I'd like to be able to start this when I wake up. Is there anything out there like this or an app that already does it? I have the Tactics Charlie if that matters. Thank you very much in advance.