TVNZ has apologised for a comment by presenter Paul Henry that overseas-trained doctors can't be as good as those trained in NZ.

A surgeon who has been the subject of several complaints about failing to properly inform patients has been ordered to pay more than $100,000 in fines and costs after the death of a patient.

Health authorities have tightened rules around the monitoring of overseas-trained doctors, following concerns being expressed for several years over supervision.

Sales restrictions on some cough and cold medicines for children will come into force on May 1 next year.

Approved pot growers in New Mexico are struggling to keep up with demand from the 2000 registered medical marijuana patients.