20 of celexa is a high dose for an anxiety sufferer to start with
the effective dose range is 10 to 60, I would start at 5 then work up to 10 and later to 20, I would say your doc isnt familiar with prescribing antidepressants to anxiety sufferers, some valium type meds always help to get used to a new antidepressant, but shouldnt be taken if the AD sedates you
get a pillcutter from a pharmacy, they come in several types, cut the tablet into quarters
all tablets can be cut, except some time release ones then lose the time release feature