[Clinical trial of a circulatory agent with a new mode of action and long-term effect].
D000697:Central Nervous System Stimulants; D006801:Humans; D007022:Hypotension; D013806:Theophylline; D013995:Time
D000697:Central Nervous System Stimulants; D013806:Theophylline
ANALEPTICS; HYPOTENSION; THEOPHYLLINE