Itraconazole Cat Oral Solution 20mg/60ml

Itraconazole Cat Oral Solution 20mg for Cat

Itraconazole Cat Oral Solution 20mg/60ml is a veterinary antifungal medication formulated specifically for cats requiring accurate, weight-based dosing. This liquid preparation (20 mg per mL) allows easier administration compared to capsules and is commonly prescribed for dermatophytosis (ringworm) and systemic fungal infections.

Itraconazole is a second-generation triazole antifungal that works by disrupting fungal cell membrane synthesis, making it highly effective against both superficial and deep fungal infections in feline patients.

Key Benefits

• Broad-spectrum antifungal coverage
• Effective for both skin and systemic fungal infections
• Precise weight-based dosing (ideal for kittens and small cats)
• Once-daily administration
• Better palatability compared to tablets
• Preferred systemic treatment for many feline mycoses

How Itraconazole Works

Itraconazole inhibits the fungal enzyme lanosterol 14α-demethylase, blocking ergosterol synthesis. Without ergosterol:

• Fungal cell membranes weaken
• Growth is inhibited (fungistatic action)
• Higher concentrations may become fungicidal

Its long half-life in cats supports once-daily dosing.

Indications in Cats

Itraconazole Oral Solution is commonly prescribed for:

1. Dermatophytosis (Ringworm)

• Microsporum canis
• Trichophyton species
• Often used when topical therapy alone is insufficient

2. Cryptococcosis

• Nasal infections
• Early CNS involvement
• Ocular fungal disease

3. Histoplasmosis

• Lung and gastrointestinal involvement

4. Sporotrichosis

• Nodular or ulcerative skin lesions

5. Aspergillosis

• Sinonasal fungal infections

Veterinary diagnosis is essential before initiating therapy.

Standard Dosage Guidelines

Typical recommended dose:
5–10 mg/kg orally once daily

Since the concentration is 20 mg/mL, dosing is calculated carefully.

Treatment Duration

• Ringworm: 2–4 weeks (sometimes longer)
• Systemic infections: 6–12 weeks or more
• Often continued 2 weeks beyond clinical resolution

Some veterinarians may use pulse therapy (7 days on / 7 days off) in long-term cases.

Administration Instructions

• Shake well before use
• Measure with provided oral syringe
• Administer after food to improve absorption
• Deliver gently into the cheek pouch
  
• Do not skip doses
  

If vomiting occurs within one hour, contact your veterinarian before redosing.

Safety Profile

Itraconazole is generally safer than ketoconazole in cats but still requires monitoring.

Common Side Effects

• Reduced appetite
• Vomiting
• Mild diarrhea
• Lethargy

Less Common but Serious

• Elevated liver enzymes
• Hepatotoxicity
• Skin ulceration (rare)
• Bone marrow suppression (very rare)

Monitoring Recommendations

For treatments exceeding 2–3 weeks:

• Baseline liver enzyme testing
• Repeat ALT/AST every 2–4 weeks
• Monitor appetite and energy
• Stop immediately if jaundice or severe vomiting develops

Contraindications

Avoid use in:

• Cats with severe liver disease
• Known azole hypersensitivity
• Pregnant cats (unless strictly necessary)

Use cautiously in geriatric or debilitated cats.

Drug Interactions

Use caution with:

• Cyclosporine
• Cisapride (contraindicated)
• Corticosteroids
• Macrolide antibiotics
• Acid-reducing medications

Always inform your veterinarian of concurrent medications.

Comparison with Other Antifungals

Itraconazole remains first-line therapy for many feline systemic fungal infections.

Storage

• Store at room temperature
• Protect from light
• Keep tightly closed
• Keep out of reach of children and pets