[1] Viswanatha Chikitsa is among the list of books provided in the First Schedule of Drugs and Cosmetics Act 1940 in India.
The identity of the author becomes controversial since CCRAS (Central Council for Research in Ayurveda and Siddha) published a text Chikitsarnava in two parts by a different author also named Viswantha Sen, according to Mahesh Kumar C.S., the latest editor of Viswanatha Chikitsa.
The author of Chikitsarnava lived in West Bengal while the author of Viswanatha Chikitsa first lived in West Bengal and moved to Orissa to work as King Prataparudra Gajapathi's court physician.
In 1990 CCRAS published an article that mentions Chikitsarnava and Viswanatha Chikitsa as distinct.
[3] Prabhakara is believed to be the father of Vaidya Ramachandra, who authored the work Indrakosha (a lexicon on medicinal plants).