Pennfield's Pennchlor 90G®is a Type A Medicated Article that contains 90
grams chlortetracycline as the calcium complex and calculated as
hydrochloride per pound. Chlortetracycline is a broad spectrum
antibiotic cleared for use in livestock and poultry feeds.
Chlortetracycline is used in livestock and poultry to treat disease,
and as an aid to increase weight, and improve feed/gain ratio.
Chlortetracycline is effective against strains of gram-positive and
gram-negative organisms. Chlortetracycline is indicated to increase the
rate of weight gain and improve feed efficiency in cattle, swine,
chickens, turkeys and sheep.