diff --git a/code/modules/reagents/Chemistry-Reagents.dm b/code/modules/reagents/Chemistry-Reagents.dm
index 43946ad6862..4165c43e475 100644
--- a/code/modules/reagents/Chemistry-Reagents.dm
+++ b/code/modules/reagents/Chemistry-Reagents.dm
@@ -1435,6 +1435,13 @@ datum
 								H.adjustToxLoss(50)
 								..()
 								return
+					if(ismonkey(M))
+						var/mob/living/carbon/monkey/MO = M
+						if(MO.dna)
+							if(MO.dna.mutantrace == "plant") //plantmen monkeys (diona) take EVEN MORE damage
+								MO.adjustToxLoss(100)
+								..()
+								return
 
 		plasma
 			name = "Plasma"