diff --git a/code/game/objects/items/stacks/medical.dm b/code/game/objects/items/stacks/medical.dm
index 04f7825c999..327afcb2a2b 100644
--- a/code/game/objects/items/stacks/medical.dm
+++ b/code/game/objects/items/stacks/medical.dm
@@ -73,7 +73,7 @@
 			else if(user.gender == FEMALE)
 				t_himself = "herself"
 			user.visible_message("<span class='notice'>[user] starts to apply [src] on [t_himself]...</span>", "<span class='notice'>You begin applying [src] on yourself...</span>")
-			if(!do_mob(user, M, self_delay))
+			if(!do_mob(user, M, self_delay, extra_checks=CALLBACK(M, /mob/living/proc/can_inject,user,1)))
 				return
 			user.visible_message("<span class='green'>[user] applies [src] on [t_himself].</span>", "<span class='green'>You apply [src] on yourself.</span>")
 
diff --git a/code/modules/reagents/reagent_containers/syringes.dm b/code/modules/reagents/reagent_containers/syringes.dm
index 46a9d30f8fc..0cb848974af 100644
--- a/code/modules/reagents/reagent_containers/syringes.dm
+++ b/code/modules/reagents/reagent_containers/syringes.dm
@@ -80,7 +80,7 @@
 					target.visible_message("<span class='danger'>[user] is trying to take a blood sample from [target]!</span>", \
 									"<span class='userdanger'>[user] is trying to take a blood sample from [target]!</span>")
 					busy = 1
-					if(!do_mob(user, target))
+					if(!do_mob(user, target, extra_checks=CALLBACK(L, /mob/living/proc/can_inject,user,1)))
 						busy = 0
 						return
 					if(reagents.total_volume >= reagents.maximum_volume)
@@ -123,13 +123,12 @@
 				if(L != user)
 					L.visible_message("<span class='danger'>[user] is trying to inject [L]!</span>", \
 											"<span class='userdanger'>[user] is trying to inject [L]!</span>")
-					if(!do_mob(user, L))
+					if(!do_mob(user, L, extra_checks=CALLBACK(L, /mob/living/proc/can_inject,user,1)))
 						return
 					if(!reagents.total_volume)
 						return
 					if(L.reagents.total_volume >= L.reagents.maximum_volume)
 						return
-
 					L.visible_message("<span class='danger'>[user] injects [L] with the syringe!", \
 									"<span class='userdanger'>[user] injects [L] with the syringe!")