The brand is Dr. Shade's #9 bitters. It can be ordered from Amazon. After I take the bitters, 2 quirts under the tongue, I also do about 10 slow breaths - in through the nose and out through the mouth.
Hope this helps.

I take Dr. Shades #9 bitters, ordered on Amazon. Two squirts underneath the tongue with water and then I do 10 deep breaths in through the nose and out through the mouth 10 minutes before eating. It helps to calm the body. Also helpful if you chew your food, not swallow large bites.