(6) IT. L. Wingfield, D. Pollack, and RR Grunert, N. Enol. J. Med., a81, 579 (1969). and with rimantadine-HC16 (a-methyl-l-adamantanemethylamine. HC1, 58) in patients with naturally occurring influenza A2 respiratory illness. Inhibition of rubella,'Rous~ arcoma,~~~ and Esh sarcoma viruses has also been reported. Amantadine'HC1 more recently has been demonstrated to benefit patients suffering from Parkinson's disease. lo Meanwhile, others" ...