What is Closantel Sodium?

Closantel Sodium is an anthelmintic drug used mainly in veterinary medicine to control and treat parasites in animals like cattle, sheep, and goats.

Uses

Closantel Sodium is effective against:

• Liver flukes (Fasciola hepatica)
• Haemonchus contortus (blood-sucking roundworms)
• Tapeworms (certain species)
• Nasal bots
• Other gastrointestinal parasites

CHEMICAL STRUCTURE

CAS No. 61438-64-0
Chemical Name: Closantel sodium
CBNumber: CB5118492
Molecular Formula: C22H13Cl2I2N2NaO2
Formula Weight: 685.06
MOL File: 61438-64-0.mol

Closantel sodium Property

mp : >230°C (dec.)

storage temp. : Refrigerator

CAS DataBase Reference: 61438-64-0(CAS DataBase Reference)

How It Works

Closantel Sodium kills parasites by:

• Blocking their energy production
• Paralyzing and removing them from the animal’s body

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Benefits

• Long-lasting action
• Effective even against drug-resistant worms
• Safe when used at prescribed dose
• Improves animal weight gain & milk/meat production

Dosage (General Guideline — Always Follow Label)

• Sheep & Goats: ~5 mg per kg (varies by product)
• Cattle: ~10 mg per kg (varies by product)

(Exact dose depends on manufacturer — always follow veterinary advice.)

Available Forms

• Oral drench
• Injectable form
• Bolus/tablets (rare)

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Precautions

• Do not overdose
• Not recommended for very young animals
• Observe withdrawal period before milk/meat use
• Store in cool, dry place

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Withdrawal Period (Average)

• Meat: 28–50 days
• Milk: Usually not recommended for lactating animals (varies by brand)

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