Company: BOMAC

DELIVERY FORM: «feed additives and medicated feeds» for oral administration.

ACTIVE INGREDIENT(S): morantel citrate 30g/kg (equivalent to 3%)

CHEMICAL CLASS of the active ingredient(s): tetrahydropyrimidines


PARASITES CONTROLLED (spectrum of activity)

  • For the treatment and control of migrating larvae and adult stages of intestinal roundworm (Ascaris suum,) and as an aid in the prevention of nodular worm (Oesophagostomum dentatum).


  • Must be thoroughly mixed into feed before use.
  • Thoroughly mix 1kg of Bomantel Premix with every tonne of pig feed to be medicated.
  • Continually administer Bomantel Premix in feed during the period for which control of roundworm and nodular worm is required.
  • Read the product label for more specific details on dosage.

* Country-specific differences may apply: read the product label.


  • LD50 (acute oral) in rats: 551-986 mg/kg for the a.i. morantel base
  • LD50 (acute dermal) in rats: n.a.

Suspected poisoning? Read the article on morantel safety in this site.

Withholding periods (=withdrawal times) in days for meat & milk (country-specific differences may apply: read the product label)

  • Meat: AUS: NIL

WARNING !!!: Never use on humans, dogs or cats

You may be interested in the following articles in this site dealing with the general safety of veterinary products:


Risk of resistance? YES, resistance to tetrahydropyrimidines has been reported for Oesophagostomum spp in swine in a few countries (e.g. Denmark), with a certain degree of cross resistance with levamisole. But this probem is much less extended than resistance of gastrointestinal worms in sheep, goats and cattle.

This means that if this product does not achieve the expected efficacy against the mentioned parasites, there is a certain risk that it is due due to resistance and not to incorrect use, which is usually the most frequent cause of product failure.

Alternative chemical classes/active ingredients to prevent resistance of external parasites through product rotation:

These alternative products may not be available in all countries, or may not be effective against all the concerned parasites.

It is highly recommended to periodically check the resistance status of each property performing appropriate tests (e.g. fecal egg counts) under supervision of a veterinary doctor. Such tests are now routinely available for most producers in developed countries.

Learn more about resistance and how it develops.


Are the active ingredients of this product ORIGINAL* or GENERICS**?


*Meaning that they are still patent protected and generics are not yet available
**Meaning that they have lost patent protection and may be acquired from manufacturers of generic active ingredients other than the holder of the original patent.

COUNTRIES where this brand/product is marketed: Australia
GENERIC BRANDS available? Yes, but very few in most countries. This product itself contains generic morantel citrate.

Click here to learn more about GENERIC vs. ORIGINAL drugs.

For an overview on the most used antiparasitic feed additives and medicated feeds for livestock and horses click here.


This product is a brand from BOMAC for a medicated wormer containing generic morantel citrate.

Morantel (in this case the citrate salt) is a veteran anthelmintic introduced in the 1970s (by PFIZER → ZOETIS). It is a narrow-spectrum anthelmintic effective against roundworms in the gut, but not against those in other organs (skin, lungs, etc). Nowadays it is rather scarcely used in livestock, horses, or pets because more effective compounds with a broader spectrum are usually preferred. It is not used in agriculture.

Morantel has no residual effect, i.e. it kills the parasites after administration but as soon as medicated feeding is interrupted it does not significantly protect the animals against re-infestation by infective stages in their environment.


This article IS NOT A PRODUCT LABEL. It offers complementary information that may be useful to veterinary professionals and users that are not familiar with veterinary antiparasitics. 

Information offered in this article has been extracted from publications issued by manufacturers, government agencies (e.g. EMEA, FDA, USDA, etc.) or in the scientific literature. No guarantee is given on its accuracy, integrity, sufficiency, actuality and opportunity, and any liability is denied. Read the site's DISCLAIMER.

In case of doubt contact the manufacturer or a veterinary professional.