Originally developed as an adsorbent charcoal for humans. Human-grade nutritional supplement. Although it was once deleted by the Mercari secretariat, this is not a pharmaceutical product, so I have relisted it. The product description was detailed, but it was deleted, so Please ask for details in the comments. It has passed safety tests, A kidney supplement for dogs and cats. For dogs and cats with kidney problems. Adsorbs harmful substances in the low molecular weight range (from in-vitro data). Expiration date: March 4, 2027