I have a box of packets that are over four years old – are the packets still safe to use? Posted on January 1, 2019March 8, 2023 by 0 Vote Up Vote Down Ask A Doctor Staff asked 4 years ago I have a box of packets that are over four years old - are the packets still safe to use? 1 Answers 0 Vote Up Vote Down Ask A Doctor Staff answered 4 years ago It is difficult to answer such a question from the manufacturer. If you need help, please call the office and we we ill give complimentary packets as an exception. Thank you. Please login or Register to submit your answer Username or Email Address Password Remember Me