A law change passed this week aims to streamline the process for allowing Covid-19 boosters to be given without requiring a prescription.

Health Minister Andrew Little says the changes made to the Medicines Act are a more enduring way to manage the administration of vaccine boosters from now on.

"The Ministry of Health's Covid-19 Vaccine Technical Advisory Group recommended that people who are at high risk of getting very sick from a Covid-19 infection should have a second booster six months after the first," says Little.

"The changes we have made today mean that the Director-General of Health now has the ability to make boosters available to those who need them, meaning people don't need an individual prescription to get one.

"The Director-General of Health will next confirm who will be eligible to receive a second booster. That announcement is expected to happen later this week."