Sorry--that appointment turned out to be a little more involved than I expected!
Truthfully, Tyron may never be completely comfortable around other people, especially loud, noisy ones that chase after him. The best you should hope for is that he stays loving around you, your husband, and your kid(s). If he wants to run and hide when people come over, don't force him to come out and don't let anyone follow after him to pet him.
But I think the Feliway long-term and the Prozac (hopefully just short term--several months, but they can take it for longer if need be) will go a long way to keeping him relaxed and happier in general.
The American Association of Feline Practitioners came out with recommendations on how to have a "happy" cat that I summarized in an article I wrote. Here it is--maybe it will be helpful in making Tyron a happier cat!
Keeping Your Cat Happy
(adapted from the AAFP/ISFM feline environmental needs guidelines)
Understanding the needs of your cat will go a long way to providing all of you with a happy home and, hopefully, avoiding undesirable behaviors from your cat in the future. Making sure your cat has a comfortable environment will result in fewer unwanted behaviors, less illness, less stress in multi-cat households, and more love between you and your pet.
There are 5 pillars of a healthy cat environment:
Pillar 1 - Provide a safe place for your cat
For a cat, a safe place is a private and secure area, often in a raised location. Cats like to be able to hide in something. If a cat can't see the potential threat, the cat feels safer, even if his/her body is not completely hidden.
There are a number of ways to provide hiding places for your cat.
cardboard box - placed on it side to allow easy access and a "roof" on which the cat can perch
enclosed cat carrier - a transportable safe place that smells familiar to the cat. Don't use open wire cages as they don't hide the cat. If you always leave your cat carrier out, it will be much easier to bring your cat to the vet as he will have his safe place throughout the visit.
perches on a tall post - should be long enough to allow the cat to fully stretch. Cats like a hammock-style dip in the perch as it aids in feeling hidden.
In multi-cat households, a safe place should have more than one entry so access can't be easily blocked by another cat. There should be at least as many safe places, sized to hold a single cat, as there are cats in a household. These multiple safe places should be in separate areas of the house.
Pillar 2 - Provide multiple and separated resources
Key environmental resources include the feeding, drinking, toileting, claw scratching, play and resting/sleeping areas. These resource should be available in multiple locations and separate from other resources. A cat should have choices--at least two resting areas, two feeding areas, two litter boxes. Food and water resources should be separated from each other.
Indoor resting areas should include a location that allows the cat to see outside. In multi-cat households, every cat should have its own separate feeding station. This allows for the privacy needed to prevent the stress associated with feeding competition, particularly between social groups.
How do you know if two cats are in the same social group? They will:
Pillar 3 - Provide opportunity for play and predatory behavior
Cats have a strong instinct to display a predatory behavioral sequence consisting of locating, stalking, chasing, pouncing, killing, preparing, and eating its prey. Failing to provide cats with opportunities for these behaviors can result in obesity, boredom, and frustration that can cause overgrooming, stress-associated disease, or misdirected aggressive behavior.
There are many ways to encourage this behavior:
Hide food in multiple locations
Scatter or toss dry food for cats to chase
Provide puzzle feeders to promote small and frequent meals
Use "fishing" toys or a wand with fur or feathers on the end to mimic flying prey and ground prey (be sure to let the cat catch the toy to simulate "capture")
Use large, soft toys that can be raked and bitten
Reward your cat with a treat following playtime
Rotate the cat toys to prevent boredom
Avoid using hands and feet in any type of play to prevent injury to yourself or your cat
In multi-cat households, make sure there are toys in separate locations.
Play with individual cats at separate times and locations
Pillar 4 - Provide positive, consistent and predictable human-cat social interaction
Social preferences among cats vary widely and are influenced by many factors. Consistent and positive handling of the cat from a young age leads to reduced fear and stress and a strong human-cat bond. Many cats prefer a high frequency, low intensity level of social contact with humans--a scenario that gives the cat a good deal of control. Cats prefer to initiate, moderate and end their interaction with humans.
Do not force interaction with a cat. Let your cat initiate, choose, and control the type of human contact they want. Avoid fixed eye contact and give the cat time to approach and make physical contact.
If the cat appears relaxed and wants to interact, gentle stroking on the head and around the cheeks is the most appropriate way to make contact.
In multi-cat households, every cat should receive individual attention without intervention by other cats.
How do you know if a cat is relaxed and wants some human interaction?
facial rubbing or head bunting on the hand or other parts of the human body
attempts to climb onto a person's lap
staying in close physical proximity with the person
pushing the body into the hand of someone who is not interacting with the cat
a relaxed roll onto the side to expose the belly (avoid touching the belly, however, as many cats find that spot vulnerable and may attack your hand)
Pillar 5 - Provide an environment that respects the importance of the cat's sense of smell
Unlike humans, cats use smell and chemical information to evaluate their surroundings and maximize their sense of security and comfort. Cats scent mark by facial and body rubbing, which establishes the boundaries of their core living area where they feel safe and secure. Wherever possible, humans should be careful not to interfere with these signals and scents.
avoid the use of cleaners, detergents, scented litter, etc. that may disrupt the scent profile the cat associates with its customary surroundings
use synthetic pheromones (Feliway) to reduce anxiety and increase grooming, interest in food, and appropriate use of the litterbox.
provide scratching areas that allow a cat to deposit its scent through glands in the pads of the feet (even declawed cats need a scratching post!)
scent marking as well as inappropriate elimination should never be punished
a cat returning to a multi-cat home from a visit away (like to the vet) may smell different. In such cases, cats that previously got along can display aggressive behavior toward one another. Using a Feliway diffuser in the home can help maintain the existing scent profile and aid reintegration. When a cat returns home, keep it in a separate room until the other cats are calm before reintroducing them.