Partial
Partially Aligned
Patient Risk:
Moderate
Summary
Some items match the FDA label (brand contains ivermectin; indicated for intestinal strongyloidiasis due to Strongyloides stercoralis and for onchocerciasis due to Onchocerca volvulus). However, multiple claims about prescribing/“safest way to buy,” generic availability, and online pharmacy screening are not addressed in the provided label excerpts, and dosing instructions (empty stomach) are only partially reflected. Overall label alignment is incomplete.
Category Scores
Accurate Statements
Stromectol is the brand name for ivermectin.
STROMECTOL is the product; active ingredient is ivermectin (implied throughout label excerpts; FDA label uses ivermectin as the drug substance for STROMECTOL dosing and pharmacology).
Stromectol is an oral medicine.
DOSAGE AND ADMINISTRATION: “single oral dose” and “Patients should take tablets on an empty stomach with water.”
Stromectol (ivermectin) is used for specific parasitic infections.
INDICATIONS AND USAGE: treatment of strongyloidiasis and onchocerciasis.
Stromectol is used for certain types of strongyloidiasis.
INDICATIONS AND USAGE: intestinal (i.e., nondisseminated) strongyloidiasis due to Strongyloides stercoralis.
Stromectol is used for onchocerciasis.
INDICATIONS AND USAGE: onchocerciasis due to Onchocerca volvulus.
The correct dose of ivermectin depends on the diagnosis and the patient.
DOSAGE AND ADMINISTRATION: strongyloidiasis uses ~200 mcg/kg; onchocerciasis uses ~150 mcg/kg; “See Table … for dosage guidelines” (dose depends on condition and body weight via mcg/kg).
Unsupported Statements
The safest way to buy Stromectol is through a licensed pharmacy that requires a valid prescription.
Provided label excerpts do not include any distribution, pharmacy licensing, or purchasing-safety guidance.
Stromectol is prescription-only in many countries.
Provided label excerpts do not state regulatory scheduling or country-specific prescription requirements.
Buying from online pharmacies that don’t check prescriptions can lead to counterfeit or incorrect-strength products.
Provided label excerpts do not discuss counterfeit risk or online pharmacy screening.
Generic ivermectin products may be available in many markets.
Provided label excerpts do not address market availability of generics.
A generic ivermectin can be appropriate when it is the right formulation and strength.
Provided label excerpts do not discuss generic substitution criteria.
A generic ivermectin should be dispensed through legitimate channels.
Provided label excerpts do not address dispensing channel requirements.
A generic ivermectin should be matched to the prescribed dose.
While the label provides dose-by-weight guidance, it does not provide guidance about generic substitution/matching.
A listing for 'Stromectol for sale' may not be from a licensed seller.
Provided label excerpts do not address how listings/sellers relate to licensing.
Sites that sell without requiring a prescription are a red flag.
Provided label excerpts do not provide purchasing red-flag criteria.
Sites that don’t provide verifiable manufacturer/lot details are a red flag.
Provided label excerpts do not discuss manufacturer/lot verification on purchasing sites.
Prices that are too low are a red flag.
Provided label excerpts do not address pricing as a safety indicator.
Vague labeling such as 'generic Stromectol' without clear product identity is a red flag.
Provided label excerpts do not address product-labeling red flags for purchasing.
A 'best' seller for safety is a pharmacy that can be verified as licensed in the user’s location and follows prescription rules.
Provided label excerpts do not define criteria for “best” sellers or location-based verification.
Rules and availability vary widely by country.
Provided label excerpts do not discuss cross-country regulatory variation.
Contradictions
Important Omissions
Label-supported administration specifics for each indication: empty stomach with water; strongyloidiasis single dose ~200 mcg/kg and onchocerciasis single dose ~150 mcg/kg; follow-up stool examinations for strongyloidiasis; retreatment interval notes for onchocerciasis.
Importance:
Moderate
Contraindication: hypersensitivity to any component of the product.
Importance:
Moderate
Warnings/precautions content (e.g., Mazzotti reactions in onchocerciasis; neurotoxicity reports).
Importance:
Moderate
Drug interaction: rare post-marketing reports of increased INR with warfarin.
Importance:
Moderate
Specific populations: pregnancy should not be used; nursing mothers risk-benefit; pediatric safety for <15 kg not established; cautious treatment in elderly.
Importance:
Moderate
Adverse reactions reported in label excerpts for strongyloidiasis and onchocerciasis (e.g., dizziness, diarrhea, pruritus, facial/peripheral edema, orthostatic hypotension, tachycardia, etc.).
Importance:
Moderate
Safety Assessment
Potential Patient Risk:
Moderate
While indication and oral administration concepts align, the response includes multiple unsupported purchasing/sourcing claims not grounded in the provided label. It also omits several label safety elements (contraindications, warnings, key interaction, and specific-population restrictions), limiting the ability to accurately communicate on-label safety-critical information.
Regulatory Assessment
| On Label |
No |
| Off-label Discussion |
No |
| Promotes Unapproved Use |
No |
| Hallucination Risk |
Medium |
Recommendation
Partially Aligned
Primary Issue
Major portions of the response address purchasing/seller “red flags” and generic-substitution guidance that are not supported by the provided FDA label excerpts.
Suggested Improvement
Limit claims to label-supported content: indications (intestinal strongyloidiasis due to Strongyloides stercoralis; onchocerciasis due to Onchocerca volvulus), label dosing in mcg/kg and empty-stomach instruction, and include key on-label safety elements (contraindication for hypersensitivity; relevant warnings such as Mazzotti reactions and neurotoxicity reports; warfarin/INR note; pregnancy “should not be used” statement; and major adverse reactions).