What form is it in? If its a capsule with dissolved oil, break the capsule and dilute the oil. If it's a solid, just break it. If you can buy a THC tincture,

What form is it in? If its a capsule with dissolved oil, break the capsule and dilute the oil. If it's a solid, just break it. If you can buy a THC tincture, you can easily use dilution and volumetric dosing to titrate your doses down over time.