diff --git a/src/js/DefaultRules.js b/src/js/DefaultRules.js
index e40bf8e486d89192810589a40f0c828dd9ca1110..8541936fd7c92eefdef4dbb70337cf01f088bdca 100644
--- a/src/js/DefaultRules.js
+++ b/src/js/DefaultRules.js
@@ -1321,6 +1321,10 @@ globalThis.DefaultRules = (function() {
 		} else if (slave.drugs !== rule.drug) {
 			if (growthDrugs.has(slave.drugs)) {
 				r += `<br>${slave.slaveName}'s body has met all relevant growth targets, so ${his} pharmaceutical regime has been ended.`;
+				if (rule.drug === null) {
+					slave.drugs = "no drugs";
+					r += `<br>${slave.slaveName} and has been defaulted to ${slave.drugs}`;
+				}
 			}
 			ProcessOtherDrugs(slave, rule);
 		}