Safe-Guard (fenbendazole 10%) Paste for Horses (25 g)

Fenbendazole Dewormer Paste for Broad Parasite Control

Product Description

Merck Safe-Guard Equine Paste for Horses is a 10% fenbendazole oral dewormer in an apple-cinnamon flavored syringe. Safe-Guard Paste 10% is indicated to control large and small strongyles, pinworms, and ascarids, plus encysted cyathostome larvae and arteritis caused by fourth-stage Strongylus vulgaris larvae.

Benefits

• Broad Control: Targets strongyles, pinworms, ascarids, and select larval stages.
• Palatable Flavor: Apple-cinnamon flavor helps improve acceptance and reduce waste.
• Clear Dosing: Plunger marking system supports weight-based dosing accuracy.
• Multiple Protocols: Offers single-dose and 5-day larval control regimens.
• Label-Supported Indications: Includes encysted cyathostomes and S. vulgaris larval arteritis control.

Ingredients

Fenbendazole 10% (100 mg/g).

How to Use

Dosage & Administration Instructions

• Standard Dose: 2.3 mg/lb (5 mg/kg) orally for strongyles and pinworms.
• Foals/Weanlings: 4.6 mg/lb (10 mg/kg), where ascarids are a common problem.
• Encysted/Larval Protocol: 4.6 mg/lb (10 mg/kg) daily for 5 consecutive days.
• Syringe Coverage: One 25 g syringe deworms a 1,100 lb horse at 5 mg/kg.
• Plunger Marks: Each mark doses 250 lb at 5 mg/kg; two marks per 250 lb at 10 mg/kg.

Additional Information

Precautions

• Human Food Restriction: Do not use in horses intended for human consumption.
• Do Not Underdose: Underdosing may reduce efficacy and encourage resistance.
• Hypersensitivity Risk: Dying parasites may trigger local/systemic reactions; treat symptomatically.
• 5-Day Safety Note: 10 mg/kg for 5 days not evaluated for stallions/pregnant mares.
• Drug Combination Caution: If used with trichlorfon, follow trichlorfon label cautions.

Shipping & Returns

We offer ground, express, priority, and international delivery; see our shipping policy for details.
For return instructions or product concerns, please refer to our detailed refund policy.

Frequently Asked Questions

Q1: What is the active ingredient in Merck Safe-Guard Equine Paste for Horses?

Ans: Merck Safe-Guard Equine Paste for Horses contains fenbendazole at a 10% concentration (100 mg per gram). Fenbendazole is an anthelmintic used to help control and treat common internal parasites in horses.

Q2: Which parasites does Merck Safe-Guard Equine Paste for Horses control?

Ans: Merck Safe-Guard Equine Paste for Horses is indicated to control large strongyles, small strongyles, pinworms, and ascarids. The product is also labeled for control of encysted cyathostome larvae and fourth-stage Strongylus vulgaris larvae.

Q3: What is the standard dose for Merck Safe-Guard Equine Paste for Horses?

Ans: The standard labeled dose for Merck Safe-Guard Equine Paste for Horses is 2.3 mg per pound (5 mg/kg) given orally. One 25-g syringe is formulated to deworm a 1,100-pound horse at this dosage.

Q4: How do the plunger marks work on Merck Safe-Guard Equine Paste for Horses?

Ans: Each plunger mark on Merck Safe-Guard Equine Paste for Horses corresponds to a 5 mg/kg dose for 250 lb of body weight. For higher-dose protocols, two plunger marks are used per 250 lb to reach 10 mg/kg.

Q5: When is the higher 10 mg/kg dose used for Merck Safe-Guard Equine Paste for Horses?

Ans: The higher 10 mg/kg dose is used for foals and weanlings under 18 months, where ascarids are a concern. This dosage is also used daily for five consecutive days for labeled control of the larval stage.

Q6: What is the 5-day dosing regimen for Merck Safe-Guard Equine Paste for Horses?

Ans: The 5-day regimen involves administering 4.6 mg per pound (10 mg/kg) once daily for five consecutive days. This protocol is specifically labeled for the control of encysted cyathostome larvae and certain fourth-stage larvae.

Q7: Are there any restrictions on using Merck Safe-Guard Equine Paste for Horses?

Ans: Merck Safe-Guard Equine Paste for Horses should not be used in horses intended for human consumption. The product is for animal use only and should be stored safely out of reach of children.

Q8: What precautions should be taken if a horse reacts after deworming?

Ans: Some horses may experience hypersensitivity reactions due to dying parasites releasing antigens. If a reaction occurs, symptoms should be treated appropriately, and veterinary guidance is recommended if signs are severe or persist.

Q9: Can Merck Safe-Guard Equine Paste for Horses be used with other dewormers?

Ans: If Merck Safe-Guard Equine Paste for Horses is used in conjunction with other deworming agents, such as trichlorfon, all product label directions and cautions must be followed carefully to ensure safe and effective use.

Q10: How can effectiveness be evaluated after using Merck Safe-Guard Equine Paste for Horses?

Ans:  Effectiveness can be evaluated through fecal examinations and ongoing parasite management monitoring. Diagnostic testing helps determine whether the deworming protocol remains effective, supporting responsible parasite control planning.