Medical ruling
Can liquid medicine go down the drain?
Use a take-back option first; flushing is a narrow, medicine-specific FDA exception.
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Sink or drainNo
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Garbage disposalNo
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ToiletCheck first
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Septic systemNo
01
Why the pipe objects
Most liquid medicines should use take-back or FDA household-trash instructions; only specific medicines qualify for flushing when take-back is unavailable.
02
Do this instead
Use a pharmacy or mail-back program first and check current FDA instructions for the exact product.
03
Already did it?
Do not add cleaners. Use FDA guidance for anything remaining, and contact Poison Control or emergency services for an exposure or poisoning concern.