It looks like your browser does not have JavaScript enabled. Please turn on JavaScript and try again. We are the global leader in helping municipalities and industrial customers protect and improve the world's most fundamental natural resource: water. We have a more than 100-year heritage of innovation and industry firsts, market-leading expertise, and unmatched customer service.
Quick Answer. Prune juice takes different amounts of time to relieve constipation depending on the severity of the problem. Prune juice starts working within an hour and can take an hour, six hours, a week or several weeks for a lazy bowel, according to Total Health. Continue Reading.
To produce prunes, plums are dehydrated in hot air at 85â90 degrees Celsius for about eighteen hours. Then the prune can be processed into juice, pureed, or used to make other products. Plums and prunes are often used for their laxative effects, with prunes being more effective than plums.