Vitamins See Alternatives Hazardous Waste Don’t Flush Down the Toilet Vitamins will dissolve if flushed down the toilet and can then hurt marine life by contaminating their habitat. Dispose of With Other Drugs Children and house pets are at risk if vitamins are left out and fall within reach, so dispose of them with other medications. Find out how to properly dispose of drugs. Disposing of Drugs at Home If you end up disposing of drugs at home, follow this four-step in-home disposal method. Alternative Ways to Recycle Return to Pharmacy Pharmacies will often accept expired medications and vitamins because they are equipped to properly store them, which prevents potential misuse.