Having your cat spayed or neutered is one of the greatest gifts you can provide your pet and family. These routine medical procedures not only help control pet overpopulation, but may also prevent medical and behavioral problems from developing. This allows your cat to lead a longer, healthier and happier life.
A "spay", or ovariohysterectomy, is the surgical removal of a female cat's ovaries and uterus, while "neutering", or castration, is the removal of a male cat's testicles. While both operations are conducted routinely with few complications, only licensed veterinarians are allowed to perform them. Prior to surgery, your veterinarian may carry out a complete physical examination of your cat or draw a sample of their blood for analysis. Both spaying and neutering are conducted while your cat is under general anesthesia to minimize pain and discomfort. Following surgery, your veterinarian will instruct you on how to care for your cat while they are recovering. Within a few days, most cats are "back to normal"; the surgery site usually heals within two weeks and any skin stitches are removed at a recheck appointment with your vet.
Spaying or neutering your cat prevents unwanted births and reduces the influence of sex hormones on your pet's behavior. In seven years, an unspayed female and unneutered male cat can produce up to 781,250 kittens. Homes cannot be found for most of these animals and many either end up in shelters or on the street. Only a lucky few are adopted; the rest are either euthanized or die from trauma, exposure, starvation or disease. By spaying or neutering your cat, you do your part to prevent this tragedy.
Behavior problems can also be prevented or minimized by spaying or neutering your cat. Sexual behavior in both male and female cats is reduced following surgery. In 90% of male cats, neutering eliminated roaming, urine spraying, and fights with neighborhood cats, regardless of their age when neutered. Female cats no longer show "heat" behavior (soliciting mounting from males). Overall, being sexually intact increases the risk of relinquishment to a shelter. There are, however, large individual differences and not all cats undergo a behavior change following spaying or neutering.
The Buprenorphine is for pain, and the Amoxidrops is an antibiotic to prevent infection. They both should have labels on them. It should say whether they are once or twice a day, and it should say whether to start both meds tonight. If it doesn't, call your vet and ask someone. A technician should have gone over the discharge instructions and the medications with you when you picked your cat up.
They are both going to be by mouth. Hold your cat's head back and place the dropper/syringe in the corner of your cat's mouth and slowly inject in her cheek pouch. Sometimes it's a 2 person job. With the antibiotic you want to give it with food, meaning your cat has to have a belly full of food. If you give it on an empty stomach, it could cause some tummy upset. If your cat is not a picky eater, you can mix the antibiotic only (not both medications) in some wet food. Your cat has to eat ALL of it. You don't want to mix the buprenorphine in food because it works better when it's injected into the cheek pouch. It'll be absorbed by the gums.
If you're still not sure, contact your vet and ask someone.