autumnal
Enlightened
- Feb 4, 2020
- 1,950
i suspect some, especially the immediate, vomiting is due to anxiety, and I think this is where propranolol amd/or benzos in moderate doses can assist when taken shortly before. My primary concern with taking 1 or 2g of propranolol with sn is actually inducing angina due to arrhythmia or just general low cardiac output and perfusion before unconsciousness sets in. Unfortunately, I don't know if there is much evidence to prove or disprove this concern.
While anxiety may well be present, the vomiting is more typically attributed to the body's instinctive reaction to the poison.
The PPH mentions:
The propanolol interferes with the compensatory cardiac response to the effects of the methaemoglobin roduced by the nitrite. As the brain receives insufficient oxygen, a message is sent to the heart to increase blood flow. However, with propanolol present, the message is blocked and with no increase in blood-flow to the brain, consciousness is quickly lost.
Does that address your concern?