I WOULD NOT RECOMMEND BLACKS MEDICINE TO YOU. I'm in desperate need of medication for my Yorkie, who is about to give birth at any minute, and I made the terrible error of getting it from Black Medicine. On the night of May 19th, I paid for the fastest 24 hours delivery option available and supposed to receive the medication on 21st May. I sent them an email in the morning of 20th , explaining that I absolutely need it delivered right away. I have yet to get the shipment as of today, May 24th, but Hermes informed me that I might receive it on 25th May. Why? Because Black Medicines delivered it through Hermes, which is now Evri, which has the cheapest and slowest delivery time of 3-5 working days. Black Medicines who deal with the health of pets should be ashamed. Do not purchase from them.