"Getting the R&D going quickly - that's the key reason we raised the money," said Hartley Atkinson. "What we're targeting is 50 to 100 countries to be selling [products] in, in the next two to three years."
Atkinson said around $8 million of the cash raised in the IPO would go towards a 400 patient clinical trial in the United States, set to begin in March, of an intravenous version of Maxigesic, a combination of paracetamol and ibuprofen marketed in tablet form in New Zealand and Australia.
Another clinical trial of intravenous Maxigesic, with 30 patients, would take place in Christchurch next year, he said.
The company is also developing the SURF Nebuliser, an ultrasonic medical device for the treatment of chronic sinusitis.
"That is a really exciting development," Atkinson said. "It's in manufacturing at the moment and we'll start clinical studies next year. We're targeting sales in early 2017."
As part of the IPO, the trustees of the Atkinson Family Trust, which is associated with the couple, sold $3 million worth of shares, retaining a 76 per cent stake in the company.
The offer price valued AFT - which had revenue of $56.2 million in the year to March, with a loss of $12.9 million - at $269 million.
By market close last night the firm's market capitalisation had risen to $300.2 million.
The company did not provide forecasts in its IPO prospectus, saying uncertainty surrounding its plans for growth would have made any guidance it provided too unreliable.
AFT Pharmaceuticals
• Raised $35.6 million in IPO, of which $32.6 million was new growth capital.
• Founded in 1997 by Hartley and Marree Atkinson.
• Products include Maxigesic, Maxiclear and Nausicalm.