IVOMEC Pour-On: Product Information (Page 2 of 2)


Studies conducted in the U.S.A. have demonstrated the safety margin for ivermectin. Based on plasma levels, the topically applied formulation is expected to be at least as well tolerated by breeding animals as is the subcutaneous formulation which had no effect on breeding performance.


Keep this and all drugs out of the reach of children.

The Safety Data Sheet (SDS) contains more detailed occupational safety information. To report suspected adverse drug events, for technical assistance, or to obtain a copy of the Safety Data Sheet (SDS), contact Boehringer Ingelheim Animal Health USA Inc. at 1-888-637-4251.


This product should not be applied to self or others because it may be irritating to human skin and eyes and absorbed through the skin. To minimize accidental skin contact, the user should wear a long-sleeved shirt and rubber gloves. If accidental skin contact occurs, wash immediately with soap and water. If accidental eye exposure occurs, flush eyes immediately with water and seek medical attention.


Cattle must not be treated within 48 days of slaughter for human consumption. Because a withdrawal time in milk has not been established, do not use in female dairy cattle of breeding age. A withdrawal period has not been established for this product in pre-ruminating calves. Do not use in calves to be processed for veal.


Store at or below 25°C (77°F) and protect from light. Excursions permitted to 104°F (40°C).
Use only in well-ventilated areas or outdoors.
Close container tightly when not in use.
Cattle should not be treated when hair or hide is wet since reduced efficacy may be experienced.
Do not use when rain is expected to wet cattle within six hours after treatment.
This product is for application to skin surface only. Do not give orally or parenterally.
Cloudiness in the formulation may occur when IVOMEC® Pour-On is stored at temperatures below 32°F. Allowing to warm at room temperature will restore the normal appearance without affecting efficacy.
Antiparasitic activity of ivermectin will be impaired if the formulation is applied to areas of the skin with mange scabs or lesions, or with dermatoses or adherent materials, e.g., caked mud or manure.
Ivermectin has been associated with adverse reactions in sensitive dogs; therefore, IVOMEC Pour-On (ivermectin topical solution) is not recommended for use in species other than cattle.
Restricted Drug (California) — Use only as directed.

When to Treat Cattle with Grubs

IVOMEC Pour-On (ivermectin topical solution) effectively controls all stages of cattle grubs. However, proper timing of treatment is important. For the most effective results, cattle should be treated as soon as possible after the end of the heel fly (warble fly) season. While this is not peculiar to ivermectin, destruction of Hypoderma larvae (cattle grubs) at the period when these grubs are in vital areas may cause undesirable host-parasite reactions. Killing Hypoderma lineatum when it is in the esophageal tissues may cause bloat; killing H. bovis when it is in the vertebral canal may cause staggering or paralysis. Cattle should be treated either before or after these stages of grub development.

Cattle treated with IVOMEC Pour-On (ivermectin topical solution) at the end of the fly season may be re-treated with IVOMEC during the winter without danger of grub-related reactions. For further information and advice on a planned parasite control program, consult your veterinarian.


Parasite resistance may develop to any dewormer, and has been reported for most classes of dewormers.

Treatment with a dewormer used in conjunction with parasite management practices appropriate to the geographic area and the animal(s) to be treated may slow the development of parasite resistance.

Fecal examinations or other diagnostic tests and parasite management history should be used to determine if the product is appropriate for the herd/flock, prior to the use of any dewormer. Following the use of any dewormer, effectiveness of treatment should be monitored (for example, with the use of a fecal egg count reduction test or another appropriate method).

A decrease in a drug’s effectiveness over time as calculated by fecal egg count reduction tests may indicate the development of resistance to the dewormer administered. Your parasite management plan should be adjusted accordingly based on regular monitoring.

Environmental Safety

Studies indicate that when ivermectin comes in contact with soil it readily and tightly binds to the soil and becomes inactive over time. Free ivermectin may adversely affect fish and certain aquatic organisms. Do not permit cattle to enter lakes, streams or ponds for at least six hours after treatment. Do not contaminate water by direct application or by improper disposal of drug containers. Dispose of containers in an approved landfill or by incineration.

As with other avermectins, ivermectin is excreted in the dung of treated animals and can inhibit the reproduction and growth of pest and beneficial insects that use dung as a source of food and for reproduction. The magnitude and duration of such effects are species and life-cycle specific. When used according to label directions, the product is not expected to have an adverse impact on populations of dung-dependent insects.

Distributed by Boehringer Ingelheim Animal Health USA Inc. Duluth, GA 30096

Made in New Zealand

®IVOMEC and Cattle Head Logo are registered trademarks of Boehringer Ingelheim Animal Health USA Inc.

© 2019 Boehringer Ingelheim Animal Health USA Inc. All rights reserved.

Rev. 10-2018


Product 126625

ivomec® pour-on
(ivermectin topical solution)

for cattle

Contains 5 mg ivermectin/mL


Kills: Roundworms (including Brown Stomach
Worm), Lungworms, Grubs, Sucking Lice,
Biting Lice, Mange Mites, Horn Flies

Contains 10-550 lb Doses

Approved by FDA under NADA # 140-841

8.5 fl oz (250 mL)

Principal Display Panel -- 250 Bottle Carton
(click image for full-size original)
ivermectin solution
Product Information
Product Type OTC ANIMAL DRUG Item Code (Source) NDC:0010-4734
Route of Administration TOPICAL DEA Schedule
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
ivermectin (ivermectin) ivermectin 5 mg in 1 mL
# Item Code Package Description Multilevel Packaging
1 NDC:0010-4734-01 1 BOTTLE, PLASTIC in 1 CARTON contains a BOTTLE, PLASTIC
1 250 mL in 1 BOTTLE, PLASTIC This package is contained within the CARTON (0010-4734-01)
2 NDC:0010-4734-02 1 BOTTLE, PLASTIC in 1 CARTON contains a BOTTLE, PLASTIC
2 1000 mL in 1 BOTTLE, PLASTIC This package is contained within the CARTON (0010-4734-02)
3 NDC:0010-4734-03 1 BOTTLE, PLASTIC in 1 CARTON contains a BOTTLE, PLASTIC
3 2500 mL in 1 BOTTLE, PLASTIC This package is contained within the CARTON (0010-4734-03)
4 NDC:0010-4734-04 1 BOTTLE, PLASTIC in 1 CARTON contains a BOTTLE, PLASTIC
4 5000 mL in 1 BOTTLE, PLASTIC This package is contained within the CARTON (0010-4734-04)
5 NDC:0010-4734-05 1 BOTTLE, PLASTIC in 1 CARTON contains a BOTTLE, PLASTIC
5 20000 mL in 1 BOTTLE, PLASTIC This package is contained within the CARTON (0010-4734-05)
Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NADA NADA140841 08/18/2020
Labeler — Boehringer Ingelheim Animal Health USA Inc. (007134091)

Revised: 09/2020 Boehringer Ingelheim Animal Health USA Inc.

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