Therapeutic Class


(trenbolone acetate & estradiol)


Revalor®-H is the original feedlot heifer implant containing 140 mg of trenbolone acetate and 14 mg estradiol. It is the original implant intended to be used as a single implant for confined heifers fed for less than 130 days, or as a terminal implant in an implant strategy for confined heifers fed for more than 130 days. Revalor-H increases rate of weight gain and improves feed efficiency in a slow-release delivery system.

Revalor®-H is an implant containing 140mg of trenbolone acetate and 14mg estradiol. Each implant consists of 7 small yellow pellets. Ten implants are provided in a cartridge.

Manufactured by a non-sterilizing process.

Increases rate of weight gain and improves feed efficiency in a slow-release delivery system.

Do not use in veal calves. Effectiveness and animal safety in veal calves have not been established.

Studies have demonstrated that the administration of Revalor®-H can result in decreased marbling scores when compared to non-implanted heifers.

Dosage Form
One implant containing 140mg trenbolone acetate and 14mg estradiol is administered to each animal. The 7 small pellets which make up the dosage of Revalor®-H are contained in one division of the multiple dose cartridge. Ten doses are in each cartridge. The cartridge is designed to be used with the universal Rev-X Implanting Tool.

Route of Administration
The implant is placed under the skin on the posterior aspect of the ear by means of Rev-X Universal Applicator Tool available from Merck Animal Health.

Not to be used in animals intended for subsequent breeding, or in dairy animals. For animal treatment only. Not for use in humans. Implant pellets in the ear only. Any other location is in violation of Federal Law. Do not attempt salvage of implanted site for human or animal food.

A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal.

Storage Conditions
Supplied in a cartridge of 10 doses in a sealed foil pouch. Store unopened product at or below 25oC (77oF). Avoid excessive heat and humidity. Open cartridges may be stored in the foil pouch protected from light in the refrigerator (2-8oC/36-47oF) for up to 6 months.

Package Quantities
Code: 069662
Box of 10 x 10 cartridge implants

Product Label(s) and MSDS