Pellet implant system for immediate and delayed release of antiparasitic drug

A method for providing immediate and long term control of parasite infestation in an animal;

• said method comprising:
• (a) providing an implanter apparatus for implanting parasiticidal pellets in an animal's ear through a bore of a hypodermic needle which is operably coupled to a pellet magazine;
• (b) loading the pellet magazine with at least one immediate release parasiticidal agent pellet dose and at least one extended release parasiticidal agent pellet dose wherein each parasiticidal agent pellet dose separately comprises from about 25-175 mg of at least one parasiticidal agent and wherein said immediate release pellet dose is configured to release substantially all of said parasiticidal agent present therein into said animal;
• (c) inserting the hypodermic needle under the skin of an animal's ear and injecting said at least one immediate release pellet dose and said at least one extended release pellet dose;
• and
• (d) withdrawing the hypodermic needle from under the skin of the animal's ear thereby leaving said at least one immediate release pellet dose and said at least one extended release pellet dose beneath the skin of the animal's ear.