Buy a micro- gram scale on amazon
https://www.amazon.com/dp/B0012TDNAM..._t1_B003STEJCU and shave off your pill until reduced dose is met. Its 10% off reduced dose. It will take quite a bit of time, but is worth it to prevent withdrawals. Also check out this link to a great website for tapering.
Tapering - Surviving Antidepressants They have information on tapering, and using water titration when the dose gets really low.