Cytotoxic & Hazardous Drug Spill Response SWMS

A cytotoxic and hazardous drug spill response is the controlled containment, decontamination and disposal of a spill of cytotoxic or other hazardous drugs in a healthcare, pharmacy or compounding setting. This is not high risk construction work — it is a hazardous chemical response procedure — but a SWMS (safe work method statement) is prepared to manage the hazardous chemical risk under the WHS general duties and the cytotoxic handling guidelines, because the substances involved are mutagenic, carcinogenic and reproductively toxic. The defining hazard is exposure: cytotoxic drugs harm by skin contact and by inhalation of aerosols or powders, and a single uncontrolled spill can expose the responder, nearby patients and staff, and anyone who walks through the contaminated area. There is no level of cytotoxic exposure that is regarded as safe, so the response is to contain rapidly, restrict access, and decontaminate from the outside in. The procedure draws on the Guide for handling cytotoxic drugs and related waste and the eviQ hazardous drug spill management guidance: a dedicated cytotoxic spill kit, double cytotoxic gloves, containment of the spill before clean-up, surface decontamination, and disposal of everything contacted as cytotoxic waste. The SWMS governed by the NSW WHS Regulation 2025 hazardous chemicals provisions (Part 7.1) sets out who responds, how the area is isolated, and how exposure is prevented and documented, with SafeWork NSW as the regulator for the work health and safety duties.

Hazards identified

7 hazards covered, sorted by priority.

Control measures

Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.

1. 1Elimination — Use closed-system transfer devices and ready-to-administer preparations so the drug is never in an open, spillable state at the point of care
2. 2Substitution — Substitute unbreakable containers and pre-filled devices for glass vials wherever the formulary allows, removing the breakage-and-sharps pathway
3. 3Engineering — Cytotoxic spill kit staged within reach of every handling area, with absorbent, containment and disposal materials
4. 4Engineering — Negative-pressure or local exhaust where powders or aerosols are handled, to capture airborne drug at source
5. 5Administrative — Immediate isolation and signage of the spill area and exclusion of non-responders, especially pregnant workers
6. 6Administrative — Defined response procedure — contain, cover, decontaminate outside-in — with trained responders and an exposure register
7. 7Administrative — Cytotoxic waste segregation, labelling and tracking, separate from general clinical waste
8. 8PPE — Double cytotoxic-rated gloves, impervious gown, eye protection and a P2/P3 respirator for the responder
9. 9PPE — Shoe covers and a face shield where splashing or large-volume spills are possible

Applicable Codes of Practice

Worked example

At 2:15 pm on a busy oncology ward, a syringe of a cytotoxic agent is dropped and cracks on the floor near a treatment bay. The nurse, Priya, calls the spill immediately, clears patients and visitors from the bay, and posts a cytotoxic-spill sign at the entrance while a colleague keeps people back. A pregnant staff member is directed away from the area entirely. Priya opens the cytotoxic spill kit kept at the bay, dons double cytotoxic gloves, an impervious gown, a face shield and a P3 respirator, then works from the outside of the spill inward — laying absorbent over the liquid, picking glass into a rigid sharps container, and avoiding any wiping that would spread the drug. The contacted area is decontaminated with the kit's detergent solution, then water, and all materials, gloves and gown go into a labelled cytotoxic-waste container, not the general clinical bin. The exposure is logged in the register, the bay is cleaned a second time before reopening, and the kit is restocked before the shift continues.

Related legislation

• WHS Act 2011 (model)
• WHS Regulation 2025
• Guide for Handling Cytotoxic Drugs and Related Waste
• eviQ Hazardous Drug Spill Management

Frequently asked questions