The current prescribing information sheet on the Tymlos web site still includes the 2 yr warning:
"2.3 Treatment Duration
The safety and efficacy of TYMLOS have not been evaluated beyond 2 years of treatment. Use
of the drug for more than 2 years during a patient’s lifetime is not recommended."
And even if there has been some sort of recent change, it would be important to confirm any insurance you have will continue to cover. The last RX plan I was on (Cigna) explicitly covered no more than 2 years in a lifetime. And although Cigna gave pre-approval for 2 years, when I switched to Welcare this year they refused to cover the last 3 months - apparently because of the declining effectiveness.