When DL-Methionine is used in combination with other treatments, it can take several weeks for the struvite bladder stones to dissolve. The time required to dissolve struvite bladder stones in a dog depends on the number and size of stones present, a dog’s successful transition to a veterinary prescription therapeutic urinary diet, the resolution of the urinary tract infection, and identification and management of the underlying medical cause. Depending on your dog's individual needs, your veterinarian may recommend follow-up diagnostic testing to assess how well it is working for your dog. No vet writer or qualified reviewer has received any compensation from the manufacturer of the medication as part of creating this article. All content contained in this article is sourced from public sources or the manufacturer. Featured Image: iStock.com/zeljkosantrac