The flu epidemic gripping the country has led to a nationwide shortage of the anti-viral medication Tamiflu.
More than 105,000 flu cases have been confirmed nationally, making it the most widespread epidemic in 15 years.
Official figures have confirmed that August 2017 was the worst month on record for flu cases in NSW.
NSW Health data shows there were 35,670 confirmed flu cases in NSW in August, more than double the number of cases in July.
If taken early within the first 24-48 hours after the onset, Tamiflu can alleviate and reduce the duration of symptoms.
The Australian government maintains a stock of Tamiflu as a strategic reserve for use in an influenza pandemic and is believed to have released some of its stock.
Dr Shane Jackson, president of the Pharmaceutical Society of Australia, said it was encouraging to see the Federal government releasing extra supplies from the National Medical Stockpile.
He added it wasn't too late to get a vaccine against the influenza.