There's calls for law changes among experts after a 2-month-old baby died after she was allegedly given medication at an adult dosage by a pharmacy.

This incident has prompted the Ministry of Health and Health New Zealand to 'urgently' undertake a joint review into the incident.

Lanny Wong, director of Mangawhai Pharmacy and a member of the national executive of the Pharmaceutical Society says something's clearly gone wrong - and an investigation is needed.

"It does seem out of place, I don't think any pharmacist would disagree with your sentiment. Obviously, something went wrong here and we need to understand what that is."

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