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Save $15 off Your Next Rx Order $100+ with code: SAVERXNOV26 - Some Exclusions Apply
Save $15 off Your Next Rx Order $100+ with code: SAVERXNOV26 - Some Exclusions Apply

Dewormer & Internal Parasite Treatments

Keep your pets and animals healthy with our dewormer medicine and internal parasite treatments. Shop from top brands for best prices at Lambert Vet Supply.

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Original price $16.99 - Original price $203.88
Original price $16.99 - Original price $203.88
Original price $16.99
$12.99 - $119.99
$12.99 - $119.99
Current price $12.99
$12.99 per item

Jeffers Ivermectin Horse Dewormer Gel, Apple Flavored

Jeffers

Jeffers IVERMECTIN Gel Horse Dewormer Paste (1.87%) Apple flavored ivermectin paste for horses. What is Ivermectin? A broad-spectrum dewormer for h...

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Original price $15.99 - Original price $203.88
Original price $15.99 - Original price $203.88
Original price $15.99
$12.99 - $155.40
$12.99 - $155.40
Current price $12.99

Durvet Ivermectin Horse Dewormer Paste 1.87%, Apple Flavor, 6.08 g

Durvet Inc

Durvet Ivermectin Horse Dewormer Paste 1.87%, Apple Flavor, 6.08 gm Features & Benefits: Apple flavor that horses love! Removes worms and bots...

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Original price $25.68 - Original price $177.49
Original price $25.68
$25.68 - $177.49
$25.68 - $177.49
Current price $25.68
$25.68 per tablet

Rx Trifexis Chewable Monthly Tablets for Dogs

Elanco

Rx Trifexis Tablets for Dogs (spinosad + milbemycin oxime) Trifexis monthly heartworm medication for dogs also kills fleas and controls adult hookw...

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Original price $39.99 - Original price $39.99
Original price $39.99
$39.99
$39.99 - $39.99
Current price $39.99
$0.80 per mL

Injectable 1% Ivermectin Cattle & Swine Dewormer

Huvepharma

1% Ivermectin Injectable Cattle & Swine Wormer This product is intended for animals only. Generic Ivermectin Dewormer (1% Ivermectin Injectable...

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Original price $13.25 - Original price $159.00
Original price $13.25 - Original price $159.00
Original price $13.25
$11.75 - $141.00
$11.75 - $141.00
Current price $11.75
$11.75 per item

Panacur Equine Fenbendazole Dewormer Paste

Panacur

PANACUR® Equine Dewormer, 25 g Paste (Fenbendazole) Panacur Horse Dewormer is a 10% Fenbendazole paste formulated for the safe and effective elimin...

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Original price $29.99 - Original price $52.99
Original price $29.99
$29.99 - $52.99
$29.99 - $52.99
Current price $29.99
$5.00 per item

Rx Tri-Heart Plus Chewable Tablets for Dogs

Tri-Heart

Rx Tri-Heart Plus for Dogs, 6 Chewable Tablets Tri-Heart Plus is a prescription monthly chewable medication for dogs that helps prevent heartworm d...

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Original price $10.99 - Original price $54.95
Original price $10.99
$10.99 - $54.95
$10.99 - $54.95
Current price $10.99
$7.00 per gram

Panacur C Canine Dewormer (Fenbendazole Granules)

Merck Animal Health

Panacur C Canine Dewormer (Fenbendazole Granules) 3 Packets in a Box Panacur C Canine Dewormer (fenbendazole) is a safe and effective dewormer for ...

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Original price $15.99 - Original price $191.88
Original price $15.99 - Original price $191.88
Original price $15.99
$12.29 - $147.48
$12.29 - $147.48
Current price $12.29
$12.29 per item

Safe-Guard 10% Fenbendazole Horse Dewormer Paste, 25g – Broad-Spectrum Parasite Wormer

Merck Animal Health

Safe-Guard Fenbendazole Horse Dewormer Paste, 25g 10% Fenbendazole Safe-Guard® Fenbendazole Paste 10% is a convenient, palatable dewormer formulate...

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Original price $45.99
Original price $45.99 - Original price $45.99
Original price $45.99
Current price $39.99
$39.99 - $39.99
Current price $39.99
$0.80 per mL

Durvet 1% Ivermectin Injection, Cattle and Swine Dewormer

Durvet Inc

Durvet 1% Ivermectin Injection, 50 mL Durvet 1% Ivermectin Injection is a broad-spectrum parasiticide for the treatment and control of internal and...

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Original price $51.99 - Original price $76.99
Original price $51.99
$51.99 - $76.99
$51.99 - $76.99
Current price $51.99
$12.83 per tablet

Rx Sentinel® Once-a-month Flavor Tabs® for Dogs, 6 Pack

Sentinel

Rx Sentinel Flavor Tabs for Dogs Sentinel Flavor Tabs are an oral broad-spectrum anthelmintic and flea control product for dogs and puppies, four w...

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Original price $54.99 - Original price $81.99
Original price $54.99
$54.99 - $81.99
$54.99 - $81.99
Current price $54.99
$9.17 per item

Rx Sentinel Spectrum Chews for Dogs, 6 Chews

Sentinel

Rx Sentinel Spectrum Chews for Dogs For optimal parasite protection, Sentinel Spectrum is formulated with three active ingredients that control and...

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Original price $6.99 - Original price $16.49
Original price $6.99
$6.99 - $16.49
$6.99 - $16.49
Current price $6.99
$6.99 per gram

Safe-Guard Canine Fenbendazole Dewormer for Tapeworms, Roundworms, Hookworms, & Whipworms

Merck Animal Health

Safe-Guard Canine Dewormer Safe-Guard Dog Dewormer Granules (22.2% Fenbendazole) for dogs and puppies over 6 weeks of age. Fenbendazole is the same...

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Original price $9.99 - Original price $129.99
Original price $9.99 - Original price $129.99
Original price $0.00
$9.99 - $109.99
$9.99 - $109.99
Current price $9.99
$9.99 per lb

Safe-Guard Multi-Species Medicated Dewormer Pellets

Safe-Guard

Safe-Guard Multi-Species Dewormer Safe-Guard Multi-Species Dewormer is a versatile, broad-spectrum pelleted dewormer formulated with 0.5% fenbendaz...

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Original price $24.99 - Original price $39.99
Original price $24.99
$24.99 - $39.99
$24.99 - $39.99
Current price $24.99
$0.80 per capsule

Poultry Dewormer 5x (Fenbendazole) Capsules

RNA Supplements

Poultry Dewormer 5x for Poultry Poultry Dewormer 5x is a flavored capsule dewormer intended to help control common intestinal parasites in poultry,...

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Original price $45.99 - Original price $89.99
Original price $45.99 - Original price $89.99
Original price $45.99
$39.99 - $83.95
$39.99 - $83.95
Current price $39.99
$0.80 per mL

Noromectin Injectable Cattle & Swine Wormer (1% Ivermectin)

Norbrook Labs

Noromectin Injection Noromectin (ivermectin) Injection is an injectable parasiticide used for the treatment and control of internal and external pa...

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Original price $199.99 - Original price $499.99
Original price $199.99 - Original price $499.99
Original price $199.99
$179.99 - $469.99
$179.99 - $469.99
Current price $179.99
$5.33 per oz

Safe-Guard 10% Suspension Cattle and Goat Dewormer

Merck Animal Health

Safe-Guard 10% Suspension Dewormer for Cattle & Goats Safe-Guard 10% Suspension Dewormer is a broad-spectrum fenbendazole-based dewormer for us...

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Original price $32.99 - Original price $54.99
Original price $32.99
$32.99 - $54.99
$32.99 - $54.99
Current price $32.99
$2.75 per item

Durvet Triple Wormer for Dogs Chewable Dog Dewormer Tablets, 12 Count

Durvet

Triple Wormer for Dogs, 12 ct Triple Wormer is for the treatment and control of roundworms (Toxocara canis, Toxascaris leonina), hookworms (Ancylos...

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Original price $38.99
Original price $38.99 - Original price $38.99
Original price $38.99
Current price $34.99
$34.99 - $34.99
Current price $34.99
$0.28 per mL

Safe-Guard Goat Dewormer (10% Suspension), 125 mL

Merck Animal Health

Safe-Guard Dewormer for Goats 10% Fenbendazole Non-prescription product (except in California, where Rx is required) Safe-Guard Dewormer for Goats...

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Original price $10.95 - Original price $49.95
Original price $0.00
$10.95 - $49.95
$10.95 - $49.95
Current price $10.95
$5.48 per oz

Durvet Liquid Wormer 2X for Dogs

Durvet Inc

Durvet Liquid Wormer 2X (Pyrantel Pamoate) for Dogs Durvet Liquid Wormer 2X is a palatable, easy-to-administer liquid dewormer for dogs and puppies...

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Original price $27.95 - Original price $157.86
Original price $27.95
$27.95 - $157.86
$27.95 - $157.86
Current price $27.95
$13.98 per oz

Nemex 2 Dewormer for Dogs & Puppies

Zoetis

Nemex 2 Liquid Dog Dewormer Canine Anthelmintic Oral Suspension Nemex 2 Liquid Dog Dewormer is a palatable, caramel-flavored oral suspension contai...

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Original price $23.95 - Original price $287.40
Original price $23.95 - Original price $287.40
Original price $23.95
$19.98 - $226.20
$19.98 - $226.20
Current price $19.98

Quest Plus Gel Horse Dewormer

Zoetis

Quest Plus Wormer Horse Dewormer 2% Moxidectin + 12.5% Praziquantel. Use in horses and ponies six months of age and older. QUEST PLUS Gel is safe f...

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Original price $29.99 - Original price $204.96
Original price $29.99 - Original price $204.96
Original price $29.99
$23.99 - $199.99
$23.99 - $199.99
Current price $23.99
$0.33 per gram

Prohibit Soluble Drench Dewormer for Cattle & Sheep

AgriLabs

Prohibit Soluble Drench Powder Cattle and Sheep Dewormer For Oral UseProhibit® Soluble (levamisole hydrochloride) is a broad-spectrum oral dewormer...

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Original price $19.99 - Original price $41.99
Original price $19.99
$19.99 - $41.99
$19.99 - $41.99
Current price $19.99

Nemacor Cat & Kitten Tapeworm Plus Dewormer Tablets – Broad-Spectrum G.I. Support

Nemacor

Nemacor Tapeworm Plus Dewormer Tablets for Cats & Kittens (2-16 lbs) Nemacor Tapeworm Plus is a broad-spectrum dewormer for cats and kittens we...

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Original price $19.99 - Original price $195.49
Original price $19.99 - Original price $195.49
Original price $0.00
$19.99 - $183.99
$19.99 - $183.99
Current price $19.99
$0.37 per mL

Dectomax 1% Injectable Wormer for Cattle & Swine (Applicator Syringe Sold Separately)

Zoetis

Dectomax Injectable Wormer (doramectin) Important: Dectomax® Injectable Wormer and the 2.5 mL - 12 mL Adjustable Applicator Syringe are sold separa...

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Original price $22.99 - Original price $749.99
Original price $22.99 - Original price $749.99
Original price $22.99
$19.99 - $729.99
$19.99 - $729.99
Current price $19.99
$0.20 per mL

Cydectin Pour-On Cattle Wormer & Applicator Gun, Moxidectin Dewormer for Beef & Dairy, Long-Lasting Parasite Control

Elanco

Cydectin® (Moxidectin) Pour-On Cattle Wormer Cydectin® Pour-On is a ready-to-use, weather-resistant pour-on formulation for the treatment and contr...

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Original price $9.99 - Original price $215.40
Original price $9.99 - Original price $215.40
Original price $9.99
$8.49 - $160.20
$8.49 - $160.20
Current price $8.49

Exodus Pyrantel Pamoate Horse Dewormer Paste

Bimeda

Exodus Paste 43.9% Pyrantel Pamoate Exodus Paste is a palatable and potent equine dewormer designed to remove and control a broad range of internal...

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Original price $19.49 - Original price $19.49
Original price $19.49
$19.49
$19.49 - $19.49
Current price $19.49

HomeoPet Feline Wrm Clear

Homeopet

HomeoPet Feline WRM Clear Safe for use in cats of all ages, including kittens, pregnant, and nursing mothers. HomeoPet Feline WRM Clear is a natura...

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Original price $29.99 - Original price $380.99
Original price $29.99 - Original price $380.99
Original price $28.99
$29.99 - $379.99
$29.99 - $379.99
Current price $29.99
$0.11 per mL

Valbazen Broad Spectrum Oral Dewormer 11.36% Albendazole for Cattle, Sheep & Goats

Zoetis

Valbazen Broad Spectrum Dewormer for Livestock 11.36% Albendazole Valbazen® Broad Spectrum Dewormer is a powerful oral suspension formulated with 1...

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Original price $54.99
Original price $54.99 - Original price $54.99
Original price $54.99
Current price $37.99
$37.99 - $37.99
Current price $37.99

Safe-Guard 10% Fenbendazole Beef & Dairy Cattle and Horses Dewormer Paste, 92g Tube – Broad-Spectrum Parasite Control

Merck Animal Health

Safe-Guard Fenbendazole Horse & Cattle Dewormer Paste, 92g 10% Fenbendazole Safe-Guard® Fenbendazole Paste 10% is a broad-spectrum, apple-cinna...

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Original price $65.99 - Original price $137.99
Original price $65.99 - Original price $137.99
Original price $65.99
$59.99 - $131.99
$59.99 - $131.99
Current price $59.99

Bimectin Injection (1%) Cattle & Swine Dewormer

Bimeda

Bimectin Injectable 1% Ivermectin. This product is intended for animals only. Bimectin Injectable is used for the control of internal and external ...

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Original price $20.95 - Original price $226.68
Original price $20.95 - Original price $226.68
Original price $20.95
$18.89 - $226.68
$18.89 - $226.68
Current price $18.89
$18.89 per item

Zimecterin Gold Horse Wormer Paste, 1-Dose

Boehringer Ingelheim

Zimecterin Gold Wormer Zimecterin Gold is a broad-spectrum horse dewormer paste containing 1.55% Ivermectin and 7.75% praziquantel is proven to tre...

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Original price $14.99 - Original price $155.88
Original price $14.99 - Original price $155.88
Original price $14.99
$12.99 - $134.76
$12.99 - $134.76
Current price $12.99
$12.99 per item

Strongid (pyrantel pamoate) Horse Dewormer Paste

Zoetis

Strongid Horse Dewormer Paste Contains the active ingredient Pyrantel Pamoate. Can be used on horses, ponies, mares and foals. This is a great hors...

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Original price $8.96 - Original price $8.96
Original price $8.96
$8.96
$8.96 - $8.96
Current price $8.96

WormEze Feline Anthelmintic Liquid, 4 oz

WormEze

WormEze Feline Liquid Wormer for Cats and Kittens A liquid cat wormer for use in food or drinking water for the removal of large roundworms, (ascar...

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Original price $30.62 - Original price $399.99
Original price $30.62 - Original price $399.99
Original price $30.62
$30.62 - $379.99
$30.62 - $379.99
Current price $30.62

Cydectin (moxidectin) Oral Sheep Drench Wormer - Antiparasitic Dewormer for Internal Parasite Control

Elanco

Cydectin Oral Sheep Drench Wormer Cydectin Oral Drench for Sheep is a ready-to-use solution containing 0.1% moxidectin for the treatment and contro...

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Original price $17.50 - Original price $210.00
Original price $17.50 - Original price $210.00
Original price $17.50
$16.30 - $195.60
$16.30 - $195.60
Current price $16.30

Quest Gel Horse Dewormer - 2% Moxidectin, Broad-Spectrum Parasite Control

Zoetis

Quest Gel Horse Dewormer 2% Moxidectin, clear gel wormer for horses.Use in horses and ponies six months of age and older. Improved syringe allows f...

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Original price $623.99 - Original price $623.99
Original price $623.99
$623.99
$623.99 - $623.99
Current price $623.99
$1.37 per gram

Rx Panacur for Dogs (fenbendazole Granules) 22.2%, 1 lb Economy Tub

Merck Animal Health

Rx Panacur Dewormer Granules for Dogs Panacur (fenbendazole) Granules 22.2% contains the active anthelmintic, fenbendazole. The chemical name of fe...

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Original price $58.22 - Original price $1,051.86
Original price $58.22 - Original price $1,051.86
Original price $58.22
$49.49 - $1,051.86
$49.49 - $1,051.86
Current price $49.49
$0.20 per mL

Ivomec Pour-On Cattle Wormer

Merial

IVOMEC® Pour-On Cattle Wormer This product is intended for animals only. IVOMEC® Pour-On Cattle Wormer contains 5 mg of ivermectin per mL and helps...

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Original price $17.99 - Original price $59.99
Original price $17.99 - Original price $59.99
Original price $17.99
$15.99 - $54.99
$15.99 - $54.99
Current price $15.99
$8.00 per item

Sentry HC WormX Plus 7-Way Dog Dewormer

Sentry

Sentry WormX Plus 7 Way Dog Dewormer Flavored Chewables Sentry WormX Plus 7 Way Dog Dewormer Flavored Chewables help treat and control common intes...

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Original price $38.50 - Original price $75.99
Original price $38.50 - Original price $75.99
Original price $0.00
$38.50 - $73.98
$38.50 - $73.98
Current price $38.50

Safe-Guard Fenbendazole Beef & Dairy Cattle Dewormer Paste 10%, 290g – Broad-Spectrum Wormer

Merck Animal Health

afe-Guard Fenbendazole Beef & Dairy Cattle Dewormer Paste, 290g 10% Fenbendazole The old 4-tab applicator gun will NOT fit the new 3-tab tubes....

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Original price $91.99
Original price $91.99 - Original price $91.99
Original price $91.99
Current price $84.99
$84.99 - $84.99
Current price $84.99

Panacur Powerpac Fenbendazole Horse Dewormer, 5 Pack

Panacur

Panacur® PowerPac Equine Dewormer, 5-Pack Panacur® PowerPac Horse Dewormer contains 10% fenbendazole and provides a five-day treatment regimen for ...

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Original price $20.00 - Original price $241.99
Original price $20.00 - Original price $241.99
Original price $20.00
$19.99 - $241.99
$19.99 - $241.99
Current price $19.99
$0.48 per mL

IVOMEC Injection (1%) Wormer for Cattle & Swine

Merial

IVOMEC Injection (1% Ivermectin) for Cattle & Swine IVOMEC Injection (1% Ivermectin Sterile Solution) is an injectable dewormer for the control...

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Original price $22.99
Original price $22.99 - Original price $22.99
Original price $22.99
Current price $19.99
$19.99 - $19.99
Current price $19.99

Elanco Tapeworm Cat Dewormer, 3 Tablets

Elanco

Elanco Tapeworm Cat Dewormer, 3 Tablets Elanco Cat Tapeworm Dewormers (praziquantel) are given orally and have proven highly effective in the remov...

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Original price $419.99 - Original price $419.99
Original price $419.99
$419.99
$419.99 - $419.99
Current price $419.99

Rx Diroban (melarsomine dihydrochloride) Canine Heartworm Treatment, 5 x 50mg Vials

Zoetis

Rx Diroban™ Diroban sterile powder for injection is indicated for the treatment of stabilized Class 1a, 2b, and 3c heartworm disease caused by imm...

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Original price $69.99
Original price $69.99 - Original price $69.99
Original price $69.99
Current price $64.99
$64.99 - $64.99
Current price $64.99
$2.60 per lb

Safe-Guard Cattle Medicated Dewormer Block, 25 lb

Safe-Guard

Safe-Guard Medicated Dewormer BlockMedicated dewormer containing 750 mg fenbendazole per pound. For cattle (Do not use in dairy cattle of breeding ...

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Original price $14.63 - Original price $153.00
Original price $14.63 - Original price $153.00
Original price $14.63
$12.95 - $153.00
$12.95 - $153.00
Current price $12.95

Horse Health 1.87% Ivermectin Dewormer Paste for Horses, Apple Flavored

Horse Health

Horse Health 1.87% Ivermectin This product is intended for animals only. For use on all horses, including broodmares, stallions and foals without a...

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Original price $54.99 - Original price $295.99
Original price $54.99 - Original price $295.99
Original price $54.99
$46.99 - $289.99
$46.99 - $289.99
Current price $46.99
$0.05 per mL

Bimectin Pour-on Cattle Dewormer

Bimeda

Bimectin Pour-on Cattle Dewormer Contains 5 mg Ivermectin per mL. For Cattle (Do not use in female dairy cattle of breeding age). Bimectin Pour-on ...

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Original price $36.99 - Original price $272.99
Original price $36.99 - Original price $272.99
Original price $36.99
$29.99 - $272.99
$29.99 - $272.99
Current price $29.99
$0.34 per mL

Synanthic 22.5% Bovine Dewormer Suspension, Oxfendazole Oral Dewormer for Cattle

Boehringer Ingelheim

Synanthic Bovine Dewormer Suspension, 22.5% Synanthic® Bovine Dewormer Suspension is a highly effective oral dewormer formulated for cattle. Contai...

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Original price $39.99
Original price $39.99 - Original price $39.99
Original price $39.99
Current price $32.79
$32.79 - $32.79
Current price $32.79
$6.56 per item

Elanco Tapeworm Dewormer for Dogs

Elanco

Elanco Tapeworm Dewormer for Dogs, 5 Tablets Elanco Tapeworm Dewormer provides effective treatment for common tapeworms in dogs and puppies over 4 ...

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