Legal status by country
Is Methylene Blue legal?
How Methylene Blueis classified in the United States, United Kingdom, Australia and Canada, side by side. Each country has its own page with a direct answer, the regulator's approval status and what the classification means in practice.
| Country | Status | Classification | Note | Detail |
|---|---|---|---|---|
| United StatesFDA | Approved medicine | Prescription drug for methemoglobinemia; 'supplement' products are unapproved | Is Methylene Blue legal in the United States? | |
| United KingdomMHRA | Prescription route | Prescription only | Is Methylene Blue legal in the United Kingdom? | |
| AustraliaTGA | Prescription route | Prescription only | Is Methylene Blue legal in Australia? | |
| CanadaHealth Canada | Prescription route | Prescription only | Is Methylene Blue legal in Canada? |
US FDA status: FDA-approved for methemoglobinemia only (ProvayBlue); other uses are off-label or unapproved. Reviewed Sep 2026.
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General information current as of Sep 2026, not legal advice. Classifications change; confirm with the regulator or a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships.