1. Talk to your prescriber - if you have been getting this from your primary doctor, ask for a referral to a psychiatrist to manage your psychotropic medication.
2. Don't ask your pharmacist to change the doctors order for how your pills are given you. They can't do that legally.
3. Don't manage your own medication adjustment without professional help. People coming off SSRI medications have been known to do some quite bizarre things, and even been quite violent without cause to love they love quite dearly.
4. Don't listen to adust-a-dose advice given above. The half-life of Celexa is 35 hours, so you'll have to take much longer than three weeks to wean off it.
5. Celexa can be dispensed in liquid form, obviously for the purposes of withdrawing from the medication. Seeing you've tried to withdraw in the past and had side effects, I suggest asking your psych prescriber to drop your daily dose down 1mg per 1-2 weeks with an at least monthly appointment for monitoring.
6. If all that is sounding a bit much... get a clean piece of paper, fold it in half, put the 10mg pill in the paper, hit it with a hammer to crush it. Use a knife to seperate out the dose you want.
Getting off SSRI's is not always easy.
Selective serotonin reuptake inhibitor discontinuation syndrome - Wikipedia, the free encyclopedia
I am serious about doing this with medical supervison. Also you will want to be sure that once clear that the prescribing diagnosis will be reduced to "History of Depression" rather than simply "Depression". (or whatever it was for)
Want off depresion meds....??? 
