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. 2019 Feb 6;9(3):e01217. doi: 10.1002/brb3.1217

Table 1.

Summary of results reported for those outcome measures and endpoints identified as of primary interest by authors, following a single dose (SD) and repeated dose (RD)

80 mg 160 mg 320 mg 640 mg 960 mg
SD RD SD RD SD RD SD RD SD RD
Blood pressure ↑p ↑p
Heart rate ↑pb.i.d ↑p
Spontaneous platelet aggregation ↑p ↑p
Cutaneous erythrocyte velocity in capillaries ↑p
Cerebral blood flow ↑pb.i.d
Concentration ↑pb.i.d
Visual scanning ↑pb.i.d
Quality‐of‐memory Index (accuracy) ↑pb.i.d/↑h ↑h
Quality‐of‐memory Index (speed) ↑pb.i.d
Secondary memory sub‐factor ↑h
Speed of attention ↓h ↓h
Mental arithmetic ↑h ↑h ↑h

Upward arrow indicated benefit for treatment over placebo whereas a downward arrow indicates a decrement for treatment. Sample population is indicted by “p” (patient) and “h” (healthy). Dose was taken in a single ingestion unless stated (b.i.d—twice per day). As an example, 80 mg, consumed twice per day (daily dose equates to 160 mg) of repeated ingestion improved heart rate, in a patient population, relative to placebo.