Pharmac is blaming a supply chain issue for the shortage of the painkiller ibuprofen.
The agency warned in late May of a looming scarcity of the 800 milligram long-acting tablets.
A spokesperson for Mylan, the company that supplies ibuprofen to New Zealand, told Newshub there was a global shortage of the drug's active ingredient.
However a shipment of 35,000 units was delivered mid-June with more expected this month, and it's hoped supply levels will be back to normal by August.
Newshub.