Thanks for bringing this to our attention, Lainie! There is no caffeine in our Tylenol Arthritis Pain Caplets so your experience is very unusual. So we can learn more about what happened and gather some details about this product, please give us a call at 1-877-895-3665. We're here to assist you Monday-Friday 9AM-7PM ET.
The EPUB files format is accepted by Kindle. However, to ensure proper conversion, it is recommended that you check the conversion with the ePubCheck Tool before uploading the file. Kindle uses the unzipped version of the ePub files and converts them for publishing. Plain Text (.txt)
However, several e-Book formats including the Amazon Kindle, Open eBook, Compiled HTML, Mobipocket and EPUB store each book chapter in HTML format, then use ZIP compression to compress the HTML data, images, metadata and style sheets into a single, significantly smaller, file.