Index/Organizations/cytochrome P450 family 3 subfamily A member 4

cytochrome P450 family 3 subfamily A member 4

Mammalian protein found in Homo sapiens

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7 results
Jan 12, 2026
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What are the pharmacokinetic strategies to raise ivermectin concentrations safely in humans?

Raising ivermectin concentrations in humans can be approached by higher or more frequent oral dosing, formulation and route changes (controlled‑release, parenteral or inhaled delivery), and pharmacoki...

Jan 16, 2026
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How do absorption and bioavailability differ for oral versus topical versus injectable ivermectin in humans?

Oral ivermectin is the standard human route and produces moderate systemic bioavailability that is sensitive to formulation and food (notably high-fat meals) and to intestinal metabolism and efflux me...

Jan 19, 2026

How should dosing be adjusted for ivermectin when a patient is on multiple prescription drugs?

When patients take multiple prescription drugs, ivermectin dosing is not a one-size-fits-all calculation but a weight-based starting point (typically ~150–200 mcg/kg) that must be reconsidered in ligh...

Jan 18, 2026

What are common drug interactions with ivermectin and how serious are they?

Ivermectin commonly interacts with drugs that affect CYP3A4 metabolism and P‑glycoprotein (P‑gp) transport, and with substances that add central‑nervous‑system (CNS) depression or alter bleeding risk;...

Jan 16, 2026

How do ivermectin pharmacokinetics vary with weight, age, and P‑glycoprotein inhibitors in humans?

Ivermectin’s pharmacokinetics are influenced by body composition and age in ways that often affect distribution and timing more than peak systemic exposure, while P‑glycoprotein (P‑gp) activity and CY...

Jan 1, 2026

What are typical plasma half-life ranges of oral ivermectin in adults and factors that alter it?

Published measurements of the plasma elimination half‑life of oral ivermectin in adults vary widely, with regulatory labels and some clinical studies reporting about 18 hours while other pharmacokinet...

Nov 27, 2025

Are there known drug interactions or patient factors (age, liver disease) that increase risk of ivermectin overdose?

Known patient factors that raise concern for higher ivermectin exposure or adverse effects include very low body weight (children <15 kg), advanced age with comorbid organ disease, and impaired liver ...