AIM ImmunoTech Inc. is an immuno-pharma company that researches and develops therapeutics for multiple types of cancers, viral diseases, and immune-deficiency disorders in the United States. Its flagship products are Ampligen (rintatolimod), a large macromolecular double-stranded RNA drug for chronic fatigue syndrome, and Alferon N Injection (Interferon alfa), a purified, natural-source, glycosylated, multi-species alpha interferon product for genital warts. The company is also developing Ampligen for potential treatment of pancreatic, renal cell, malignant melanoma, non-small cell lung, ovarian, breast, colorectal, and prostate cancers, as well as myalgic encephalomyelitis, Hepatitis B, HIV, COVID-19, and post-COVID conditions. Formerly known as Hemispherx Biopharma, Inc., it changed its name to AIM ImmunoTech Inc. in August 2019; it was founded in 1966 and is headquartered in Ocala, Florida.