Vermicyde-GRD is formulated for treating people infected/infested with the protozoan Giardia. It contains Tansey, Green-Black Walnut Hulls and LDM-100. This Vermicyde is contra-indicated for pregnant women. Do not use if pregnant. Dosage schedule is 5-10 drops 3 times per day. Reduce amounts in small children. Treatment time is generally about two weeks.