I don't understand how any phramacist would tell you hat "Tymlo couldn't be broken in half beause it's not marked"? It's not a pill, it's an injectable onlly. It's also not 80 mg (milligrams) daily but 80 mcg (micrograms), a different measurement. There would be no way to give yourself half an injection twice a day--why would you want to do that, anyway? The inection process takes about two minutes to prepare your injection site and do the injection, which you really can feel. The needle is very, very tiny. If you are a person who is generally afraid of needles once you've done the Tymlos injection once or twice you won't give it another thought!