I just wanted to share my positive experiences with immune support supplements that can be used to treat FIV cats. I'm not a veterinarian or an expert, but I have done quite a bit of research in this area and have come up with a successful treatment plan.

My cat Enoch was diagnosed 13 years ago and has been primarily asymptomatic for the majority of those years.
I took Enoch in for a check-up last March and his new vet was absolutely convinced that Enochs initial FIV test was a false positive- that's how healthy he is (toots horn)! I agreed to let the vet retest him for FIV and it did come back positive.
Here is a list of what I use and how I administer it:
1. NHV Felimm:
0.5 ml 2x/day.
Mix in with a small amount of soft food, or administer it orally if your cat will tolerate this.
Can purchase on Amazon
2. Lactoferrin:
250 mg
1 capsule per day
Mix in with a small amount of soft food.
Can purchase on Amazon
3. NOW Pets L-Lysine powder:
1 tsp. 1×/day.
Mix in with soft food.
Can purchase on Amazon
4. Basic multivitamin for cats:
Mix in with soft food.
Can purchase at Walmart.
5. Gorse Flower Essences:
This helps chronically ill pets to not fall into a depression. I buy Gorse on Amazon.
In addition to these supplements, I feed Enoch IAMS Senior dry kibble.
I keep his litter area, food and water bowls sanitized and provide him with fresh water daily.
I keep Enoch indoors and provide him with lots of stimulation to ensure that he does not get bored.
I keep a Feliway diffuser plugged in at all times to keep his stress levels at a minimum. I purchase the Feliway on Amazon.
I also make sure to keep his living environment-and mine-peaceful, happy, drama free and serene. I have one other cat who he gets along with really well, but no other animals that may stress him out.
I gently clean his nail beds daily with a diluted hydrogen peroxide solution to prevent soft tissue infections. I keep his nails trimmed as well so that he doesn't snag them on something.
I give him catnip every few days and spend lots of time cuddling with him, petting him and telling him how handsome he is.

I hope that these ideas and suggestions will help someone else succeed in keeping their FIV kitties happy and healthy.
Take care and God bless you and your FIV+ furbaby!❤