Doxycycline is first and foremost an antibiotic but has numerous immunomodulating properties as well and is used widely in the treatment of immune mediated disease. (marvistavet.com)
Ashwagandha has been used in Eastern medicine for more than 2,500 years and has immunomodulating effects that boost the immune system and help the body lower its cortisol levels. (mindbodygreen.com)
For alternative immunomodulating drugs, consult your veterinarian. (vin.com)