Police are investigating the armed robbery of a Palmwoods pharmacy this afternoon.

Around 2.44pm, it will be alleged a man armed with a pitchfork entered the Margaret Street premises and demanded prescription drugs from an employee before attempting to flee with several boxes of medication.

As the man approached a glass door, closed by customers inside the pharmacy, it will further be alleged that he smashed the door using the pitchfork.

It will then be alleged the man fled on foot before being apprehended by passers-by in a nearby street.

The man was then taken into custody by police.

A 36-year-old Narangba man has been charged with enter premises with intent, armed robbery and wilful damage.

He will appear in Maroochydore Magistrates Court on Monday, August 8.