refill

(noun) a prescription drug that is provided again. Examples: "He got a refill of his prescription." "The prescription specified only one refill."

(noun) a commercial product that refills a container with its appropriate contents. Examples: "He got a refill for his ball-point pen." "He got a refill for his notebook."

(verb) fill something that had previously been emptied. Synonyms: replenish, fill again. Example: "Refill my glass, please."