Her rival Donald Trump has also released details of his health
Hillary Clinton is "healthy and fit to serve as president" despite her bout of bacterial pneumonia, her doctor has said.
Dr Lisa Bardack said the Democratic nominee was recovering well from "mild, non-contagious bacterial pneumonia" and had been prescribed a 10-day course of antibiotics.
A detailed letter about her treatment is going to be released by the campaign later on Wednesday - but the rest of her complete physical exam is said to be "normal".
She is said to be in an excellent mental condition, and her health records are expected to show blood pressure and cholesterol within normal ranges.
Mrs Clinton was diagnosed with pneumonia and told to rest last Friday, but said she ignored "that very wise advice" and continued her campaign schedule.
On Sunday, she seemed to buckle while waiting to get into a minivan after a 9/11 memorial event - and her diagnosis quickly emerged as speculation about her health reached fever pitch.
It comes as her Republican rival Donald Trump released his most recent health report on a US TV show.
He appeared on 'The Dr Oz Show' for what his campaign team described as a chat about his general well-being and his family's medical history.
Mr Trump also handed the show's host Mehmet Oz a one-page summary containing results from his most recent physical exam.
In a statement, the show said Dr Oz had taken Mr Trump "through a full review," looking at his nervous system, cardiovascular health, prostate health and family medical history.