Regarding the article "Forget it! Herbal drugs may not really enhance your memory" which appeared in Deccan Herald on August 19, 2002 and which mentioned the drug Mentat, the Himalaya Drug Company's spokespersons have said that although the NIMHANS team has not tested Mentat on humans, (the article focussed on what NIMHANS has done in this field) Mentat has been tested on humans at the Banaras Hindu University; Varanasi, in their Institute of Medical Sciences and at the Department of Psychiatry, G S Medical College and KEM Hospital, Mumbai.

The trial was done with 20 patients suffrring from schizoprenia and 20 from major depression at KEM Hospital. The study recommended that more clinical trials be undertaken to confirm the findings. The study at Banaras Hindu University with 30 patients of anxiety neurosis and 44 cases of minor depression has said that further studies are warranted. It was also tested on 20 children at Apollo Neuro Hospital, Chennai, they said.

Dr S K Mitra, Executive Director - Research and Technical Services told Deccan Herald that "All our clinical trials are conducted by medical academic institutions like AIIMS and St. Johns Medical College. Till date over 70 papers have been published about Mentat in recognised medical journals and publications."