Chest tightness and stinging face

2. T+00:01:00 [intensity]

intensity 

± PLUS/MINUS — Threshold — something may be present, but it's right at the edge of perception. A stronger experience would confirm it; otherwise it may be nothing.

3. T+00:06:00 [intensity]

intensity 

− MINUS — No noticeable effect.

4. T+00:00:00 [note]

Within a minute of the injection starting, the subject felt chest constriction and a stinging, nettle-like sensation across the face, along with passing nausea. These effects were over in about six minutes.