Can Puppy Shots Cause Them to Be Sleepy or Lethargic?
Puppy shots are important for every puppy in their first few months of life. It is recommended that puppies receive a set of four shots, beginning at eight weeks and ending by six months. Just as with humans, there are side effects of puppy shots, so it is important that you monitor your puppy closely after each shot. Sleepiness and lethargic behavior are two common reactions.
