Complete Up To Date Information about MGA 500 / Rumensin .
NADA Number: 125-476 | |
| Proprietary Name |
MGA® 500 / Rumensin® MGA® 500 Liquid Premix / Rumensin® |
|---|---|
| Sponsor |
Pharmacia & Upjohn Co. |
| Sponsor Address |
a Division of Pfizer, Inc. 235 East 42nd St. New York, NY 10017 USA |
| Ingredients |
Melengestrol Acetate Monensin Sodium |
| Species |
Cattle, beef, heifers fed in confinement for slaughter |
| Routes of Administration |
Per Os |
| Dose Form |
Medicated feed |
| Drug Form |
Type A Medicated Article |
| Dispensing Status |
OTC |
| Patent Number |
3839557 3995027 4061755 4075323 4083962 4218438 4333919 4366168 4405609 4468380 |
|
Dosage Amount, Indications & Limitations |
558.342 Melengestrol acetate. Specifications: Dry Type A medicated articles containing 100 or 200 milligrams per pound or liquid Type A article containing 500 milligrams per pound. Conditions of use: Cattle (heifers fed in confinement for slaughter): Amount: Melengestrol acetate 0.25 to 0.40 milligram per head per day, plus monensin (as monensin sodium), 50 to 360 milligrams per head per day. Indications: For increased rate of weight gain, improved feed efficiency, and suppression of estrus (heat) and and for the prevention and control of coccidiosis due to Eimeria bovis and E. zuernii. Limitations: Heifers being fed in confinement for slaughter. Add at the rate of 0.5 to 2.0 pounds per head per day a medicated feed (liquid or dry) containing 0.125 to 0.80 milligram of melengestrol acetate per pound to a feed containing 5 to 30 grams of monensin per ton; or, add at the rate of 0.5 to 2.0 pounds per head per day a medicated feed (liquid or dry) containing 0.125 to 0.80 milligram of melengestrol acetate plus 25 to 720 milligrams of monensin per pound to a non-medicated feed to provide 0.25 to 0.40 milligram of melengestrol acetate and 50 to 360 milligrams of monensin per head per day. |
| Tolerances |
A tolerance of 0.10 part per million (ppm) in cattle liver, 0.05 ppm in muscle, kidney, and fate. A tolerance of 0.05 ppm in goats edible tissue.
A tolerance for residue of monensin in chickens, turkeys and quail is not needed. A tolerance for residues of monensin in milk is not needed.
A tolerance of 25 parts per billion is established for residues of the parent compound, melengestrol acetate, in fat, of cattle. |