The number in this name is the microgram figure: each of the fifty tablets carries 100 mcg of liothyronine, four times the content of the common 25 mcg presentation and the strongest tablet Maxtreme offers for this hormone.
Liothyronine is synthetic T3, the biologically active thyroid hormone, and it acts on metabolic rate rather than on muscle tissue. Because the tablets are concentrated, the pack is physically tiny. Maxtreme lists both a 25 and a 100 version under near-identical names, so the printed figure on the strip is the thing to read.
