MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: lucasmillerPlease Login or Register to create posts and topics.Post History: lucasmillerlucasmillerUserProfilePost HistoryNitazoxanide 500 mg typically begins to take effect within 24 to 48 hours after starting treatment. …In: How Quickly Does Nitazoxanide Take Effect?3 months ago