Whether or not this is the cause of his resistance to caffein will be discussed later.
Salts of an unstable nature are formed with caffein by most acids.
All the experiments of the series showed absence of cumulative action of caffein.
The beans are then steam distilled to remove the caffein, dried, and roasted.
In other rabbits, however, approximately the same doses of caffein produced increased reflexes only.
This gives the total nitrogen due to both the proteids and the caffein.
The rabbit aborted but recovered from the effects of caffein.
Observations with caffein were also made on the human subject.
Tannic acid, not as free acid, is combined with caffein as a tannate.
Stuhlmann and Falck also studied the effects of caffein on fishes and toads.
caffeine caf·feine or caf·fein (kā-fēn', kāf'ēn', kāf'ē-ĭn)
A bitter white alkaloid often derived from tea or coffee and used chiefly as a mild stimulant and in the treatment of certain kinds of headache.