One of the country's top youth health experts says puberty blockers have been safely used in New Zealand for 20 years. 

No child or young person experiencing gender dysphoria or incongruence will be able to start taking gonadotropin - releasing hormones from December 19.

Health Minister Simeon Brown says Cabinet has agreed to new settings until the outcomes of a major clinical trial in the UK in 2031.  

Otago University's Dame Sue Bagshaw told Ryan Bridge she doesn't like the way Government is politicising a possibly life-saving medicine.