Tylan Soluble This antibiotic has been recently labeled for the control of American foulbrood. Should Terramycin not be working in your apiary this is the antibiotic for you. This is very concentrated and must be well mixed with powdered sugar. One bottle requires 22.3 pounds of confectioners/powdered sugar. The container will yield 200 treatments. Each colony must be treated 3 times with 200mg of Tylosin. Treating each colony 3 times gives one bottle the ability to fully treat 166 colonies. Colonies should be treated 4 weeks before honey flow. MC917 Tylan Soluble.................................$ 43.95