Prop the suppository molds upright in a plastic container.
Melt your cocoa butter in a double boiler and stir in your herbs/medication, Fill the molds with the melted oil using a syringe. Fill the molds to about 10mm from the top.
When molds are all filled, place in refrigerator to allow cocoa butter to solidify. Once solidified, the suppositories are ready for use. To remove suppositories from molds, trim off a single suppository with a scissor.
Separate the two tabs at the sharp end of the mold, and peel away the two sides of the mold to release the suppository from the mold.
If the suppositories cannot be kept refrigerated, the open ends can be heat sealed to prevent leaking.