I apologize, but I did not find any Mediderm ointment or cream in the search results. As an experimental shopping assistant, I do not have access to the full catalog of product listings. However, if you provide me with more details about the Mediderm product you need, such as the active ingredients or what skin condition it treats, I can try searching more specifically to find suitable alternatives for you from the brands and items shown above. Please let me know if you can share any other details, and I'll do my best to find a good option to suit your skincare needs.