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The Ralogun Ralgro Pellet Injector is the exclusive applicator gun for Merck’s Ralgro Implants. The Ralgro injector is designed with a small needle for reduced tissue trauma and greater retention. Always use a sharp needle; as the needles become dull, it may tear the tissue and make proper implanting difficult. Be sure that the needle is fully seated in the Ralgro Gun for proper administration. This ensures that pellets will be expelled from the needle as the gun’s plunger is extended. Failure to set the needle could cause the last pellet to be left in the needle and not implanted. After implanting, wipe the needle with cotton or gauze moistened with alcohol or other suitable disinfectant. Do not dip the needle in solution or it may become plugged. Replace needle when dull. The Ralgro gun comes with 6 needles.