We're talking a natural medicine protocol here. Did you ever go into a dr's office and ask him to have your Rx special made cause you didn't like one of the ingredients, or didn't like how your body reacted to one specific part of it?
Citrus causes strong muscular contraction in the gallbladder and liver. Grapefruit of any color, lemons, limes, heck, even ugly fruit is citrus. Is there a reason you can't deal with any of those? 1/2 cup once every 2 - 4 weeks?