I read this book in high school (we had just evolved past chiseling in stone) and I am trying to find it. Future society where the population was controlled by weekly injections. The government controlled all aspects of life. The main character was a child (early teen?) who was told by his grandfather (who disappeared soon after) to devise a way to avoid the injections. I think the child’s name was Pip or Chip. The child succeeds and eventually leads a revolt to overthrow the government. I thought it was “A Brave New World“ by Aldous Huxley, but I don’t think that is correct. Thanks in advance!