Q. He is 17 has a uti no crystals been peering in the house. Been taking antibiotics for a week.lost 5 lbs in two yrs.
A. He may need more time for the antibiotics to show effects. If it continues, recheck with your vet and have him/her collect a sterile urine sample for urinalysis and culture. The culture will identify the organism responsible, the sensitivity panel will determine the most effective antibiotic to use in treatment. Blood work can be done to assess major organ function and to address the weight loss. Once medical causes have been dealt with, you can focus on behavioral issues. If you have multiple cats, the general rule of thumb is to have a litterbox for each cat in the house plus an additional litterbox. Try different types and brands of litter. Your cat may prefer one to another. Try litterbox attractants. Search www.pet360.com for options. If your cat is stressed or feeling anxiety, try to determine and reduce or eliminate the offending stimulus. If that isn't possible, calming pheromone collars or sprays may be effective.