That's what the Mayo Clinic says
Understand how puberty blockers work to suppress puberty. Learn about their benefits, side effects and long-term effects.
www.mayoclinic.org
Puberty blockers for transgender and gender-diverse youth
Are the changes permanent?
GnRH analogues don't cause permanent physical changes. Instead, they pause puberty. That offers a chance to explore gender identity. It also gives youth and their families time to plan for the psychological, medical, developmental, social and legal issues that may lie ahead..
When a person stops taking GnRH analogues, puberty starts again.