Whoopi Goldberg has said she loves her marijuana-vapourising pen.

In a new column for the Denver Post's Cannabist website, the Oscar-winning entertainer wrote that her "vape pen" relieves the devastating glaucoma headaches she suffers without overwhelming her with a marijuana high.

The comments came in Goldberg's debut column.

She said marijuana eases the pressure, pain and stress of glaucoma, and her vapourising pen allows her to get the right amount in small sips.

Goldberg says she is discreet about using the pen if she is in jurisdictions where medical marijuana is illegal.