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Vectin Horse Wormer

  • Vectin Paste » Single Syringe (Treats 600kg Horse) £9.99


Vectin is a broad spectrum anti-worm treatment based on Ivermectin, a naturally derived active ingredient known to treat large and small Redworms, Lungwoms, Pinworms and Bots as well as Hairworms, Neck Threadworms and large mouth stomach worms. Administer at 8-10 week intervals. Vectin is also suitable for use in foals over 6 weeks old and pregnant mares (POM-VPS).

The presence of worms can be checked in your horse using a Worm Testing Kit.


A yellow, gel-like paste of uniform consistency, containing:

Active substance:


18.7 mg/g



Apple flavour

20 mg/g



Vectin Horse Paste is indicated for the treatment of nematode or arthropod infestations in horses due to:

Large strongyles

Strongylus spp.

S. vulgaris (adults and fourth larval [arterial] stages)

S. edentatus (adults and fourth larval [tissue] stages)

S. equinus (adults)

Triodontophorus spp. (adults)

T. brevicauda

T. serratus

Small Strongyles

Adults and immatures (fourth stage larvae) small strongyles or cyathostomes unless otherwise stated. Ivermectin is not effective against the encysted larval stages of the small strongyles.

Coronocyclus spp.

Cyathostomum spp.

C. coronatus

C. catinatum

C. labiatus

C. pateratum

C. labratus

Cylicocyclus spp.

Cylicostephanus spp.

C. ashworthi

C. calicatus

C. elongatus

C. goldi

C. insigne

C. longibursatus

C. leptostomum

C. minutus

C. nassatus

Cylicodontophorus spp.

Parapoteriostomum spp.

C. bicornatus

P. mettami

Petrovinema spp.

Poteriostomum spp.

P. poculatum

Lungworms (adult and inhibited fourth stage larvae)

Dictyocaulus arnfieldi

Pinworms (adult and inhibited fourth stage larvae)

Oxyuris equi

Ascarids (adults and third & fourth stage larvae)

Parascaris equorum

Hairworms (adults)

Trichostrongylus axei

Large-mouth stomach worms (adults)

Habronema muscae

Neck threadworms (microfilariae)

Onchocerca spp.

Intestinal threadworms (adults)

Strongyloides westeri

Stomach bots (oral and gastric stages)

Gasterophilus spp.

Dosage and administration

Administer orally as a single dose rate to horses at the recommended dose level of 0.2 mg ivermectin per kilogram of bodyweight. Each syringe delivers 120 mg ivermectin, sufficient to treat 600 kg of bodyweight.

Single administration. Bodyweight and dosage should be accurately determined prior to treatment.

Dosing Instructions

Each weight-marking on the syringe plunger will deliver sufficient paste to treat 100 kg bodyweight. Unlock the knurled ring by making ¼ turn and slide the knurled ring up the plunger shaft so that the side nearest the barrel is at the prescribed weight marking. Turn the knurled ring ¼ turn to lock in place. Make sure the horse’s mouth contains no feed.

Remove the plastic cap from the tip of the nozzle.

Insert the syringe into the horse’s mouth at the interdental space. Advance the plunger as far as it will go, depositing the medication on the base of the tongue. Immediately raise the horse’s head for a few seconds after dosing.

The treatment schedule should be based on the local epidemiological situation.

Contra-indications, warnings, etc

Do not use in mares producing milk for human consumption.

Some horses carrying heavy infestation of Onchocerca microfilariae have experienced oedema and pruritus following dosing, assumed to be the result of death of large numbers of microfilariae. These signs resolve within a few days but symptomatic treatment may be advisable.

Special warning for non-target species: The product has been formulated for use in horses only. Cats, Dogs, especially Collies, Old English Sheepdogs and related breeds or crosses, and also turtles and tortoises may be adversely affected by the concentration of ivermectin in this product if they are allowed to ingest spilled paste or have access to used syringes.

As ivermectin is extremely dangerous to fish and aquatic life, treated animals should not have direct access to surface waters and ditches during treatment.

Parasite resistance to any particular class of anthelmintic may develop following frequent, repeated use of an anthelmintic of that class.

Studies performed in laboratory animals showed no teratogenic or embryotoxic effect of ivermectin at the recommended doses during therapy.

The safety of the veterinary medicinal product has not been established during pregnancy and lactation. Use only according to risk/benefit analysis by the responsible veterinary surgeon.

Do not eat, drink or smoke while handling the product. Avoid contact with skin and eyes. If accidental skin contact occurs, wash the affected area immediately with soap and water. If accidental eye exposure occurs, flush the eyes immediately with water and if necessary get medical attention.

Wash hands after use.

Withdrawal period

Meat and offal - 34 days.

Do not use in mares producing milk for human consumption.

For animal treatment only. Keep out of reach and sight of children.

Pharmaceutical precautions

No special precautions for storage.

This is a single dose product. Discard after use.

Environmental warnings


Do not contaminate surface waters or ditches with product or used containers.

Any unused product or waste material should be disposed of in accordance with national requirements.

Legal category


Packaging Quantities

High density polyethylene pre-filled dose-graduated disposable syringe containing 6.42 g of product.

Further information


Marketing Authorisation Holder (if different from distributor)

Bimeda, Tallaght, Dublin 24

Marketing authorisation number

Vm 12597/4031.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Freephone*: 0800 084 2608
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