Which of the following medications is considered hazardous waste?

Warfarin is regarded as hazardous waste due to its potent anticoagulant properties and the potential for serious side effects, particularly if not handled or disposed of properly. Medications classified as hazardous can pose significant risks to health and the environment if they are not managed appropriately.

Warfarin, being a highly effective anticoagulant, requires careful handling to prevent accidental exposure or toxicity, especially as it has a narrow therapeutic index, meaning the difference between an effective dose and a toxic dose is small. This characteristic necessitates special disposal measures to ensure safety, which is a part of hazardous waste management protocols.

The other medications listed, while they have their own risks and considerations, do not fall under the same classification for hazardous waste. Amoxicillin is an antibiotic that can be disposed of through standard waste protocols. Ibuprofen and acetaminophen are over-the-counter medications generally considered safe when used as directed and thus do not have the same hazardous designation as warfarin.