10 Surprising Items You Must Never Pour Down the Drain
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Medication

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Studies have detected painkillers, antidepressants, and antibiotics in tap water worldwide, raising concerns about long-term human exposure and accelerating antibiotic resistance. The safest route is a drug take-back program offered by pharmacies or local agencies. If no program exists, mix pills with used coffee grounds in a sealed bag before tossing them—never flush them away.
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