Ivermectin Medical Valley (Ivermectin)

Ivermectin acts on a variety of parasitic infections by targeting the nervous system of the organisms. It is clinically employed for the following conditions:

• Onchocerciasis: reduces microfilarial load and helps prevent blindness.
• Strongyloidiasis: eliminates intestinal larvae and prevents disseminated disease.
• Scabies: eradicates the Sarcoptes mite, relieving itching and skin lesions.
• Lymphatic filariasis (in combination therapy): contributes to parasite clearance when used with other agents.
• Other intestinal nematode infections: treats infections such as ascariasis and hookworm.

• Ivermectin binds selectively to glutamate‑gated chloride channels found in many invertebrates. This binding increases chloride ion influx, causing hyperpolarization of neuronal and muscular cells, leading to paralysis and death of the parasite while having minimal effect on mammalian cells due to the absence of these channels in humans.

Ivermectin is generally well tolerated, but adverse reactions can occur.

Common Side Effects

• Dizziness: transient sensation of light‑headedness.
• Nausea: mild to moderate upset stomach.
• Diarrhea: loose stools during treatment.
• Abdominal pain: cramping or discomfort.
• Pruritus: itching, often related to parasite die‑off.
• Headache: mild headache during therapy.

Serious or Rare Side Effects

• Stevens‑Johnson syndrome: severe skin reaction requiring immediate medical attention.
• Hepatotoxicity: elevated liver enzymes or liver injury.
• Anaphylaxis: acute allergic reaction with breathing difficulty.
• Visual disturbances: blurred vision or optic neuritis.
• Neurologic toxicity: seizures or altered mental status.
• Severe skin rash: extensive rash or exfoliative dermatitis.

Before prescribing Ivermectin, clinicians should consider several safety aspects.

• Assess liver function: evaluate hepatic status as metabolism is hepatic.
• Avoid in known hypersensitivity: discontinue if allergic reactions occur.
• Monitor neurologic symptoms: watch for dizziness, seizures, or confusion.
• Use cautiously in high parasite burden: risk of severe inflammatory response.
• Store at room temperature: keep in the original pack, protect from moisture and direct sunlight.

Ivermectin may interact with other medicines, requiring attention to potential effects.

Major Interactions (Avoid)

• Strong CYP3A4 inhibitors (e.g., ketoconazole): may increase ivermectin plasma levels.
• Concurrent neurotoxic agents (e.g., albendazole): heightened risk of neurotoxicity.
• Warfarin: possible enhancement of anticoagulant effect.

Moderate Interactions (Monitor Closely)

• P‑glycoprotein substrates: may alter drug exposure.
• Macrolide antibiotics (e.g., erythromycin): require monitoring for increased levels.
• Other antiparasitics: combined use may raise adverse‑event risk.