diff --git a/code/modules/reagents/Chemistry-Reagents.dm b/code/modules/reagents/Chemistry-Reagents.dm
index 314a820aa6..7bd92ad0f8 100644
--- a/code/modules/reagents/Chemistry-Reagents.dm
+++ b/code/modules/reagents/Chemistry-Reagents.dm
@@ -1192,8 +1192,8 @@ datum
 					var/mob/living/carbon/human/H = M
 					var/datum/organ/internal/eyes/E = H.internal_organs["eyes"]
 					if(istype(E))
-						E.damage = max(E.damage-5 , 0)
-//				M.sdisabilities &= ~1		Replaced by eye surgery
+						if(E.damage > 0)
+							E.damage -= 1
 				..()
 				return
 
@@ -1209,9 +1209,10 @@ datum
 				if(!M) M = holder.my_atom
 				if(ishuman(M))
 					var/mob/living/carbon/human/H = M
-					var/datum/organ/internal/I = H.internal_organs
-					if(I.parent_organ == "chest")
-						I.damage = max(I.damage -1 , 0)
+					var/datum/organ/external/chest/C = H.get_organ("chest")
+					for(var/datum/organ/internal/I in C.internal_organs)
+						if(I.damage > 0)
+							I.damage -= 0.20
 				..()
 				return
 
@@ -1693,9 +1694,10 @@ datum
 			description = "A powerful sedative."
 			reagent_state = SOLID
 			color = "#000067" // rgb: 0, 0, 103
-			toxpwr = 0
+			toxpwr = 1
 			custom_metabolism = 0.1 //Default 0.2
-			overdose = REAGENTS_OVERDOSE/2
+			overdose = 15
+			overdose_dam = 5
 
 			on_mob_life(var/mob/living/M as mob)
 				if(!M) M = holder.my_atom
@@ -1705,11 +1707,50 @@ datum
 					if(1)
 						M.confused += 2
 						M.drowsyness += 2
-					if(2 to 50)
+					if(2 to 199)
+						M.Weaken(30)
+					if(200 to INFINITY)
 						M.sleeping += 1
-					if(51 to INFINITY)
-						M.sleeping += 1
-						M.adjustToxLoss((data - 50)*REM)
+				..()
+				return
+
+		toxin/potassium_chloride
+			name = "Potassium Chloride"
+			id = "potassium_chloride"
+			description = "A delicious salt that stops the heart when injected into cardiac muscle."
+			reagent_state = SOLID
+			color = "#FFFFFF" // rgb: 255,255,255
+			toxpwr = 0
+			overdose = 30
+
+			on_mob_life(var/mob/living/carbon/M as mob)
+				var/mob/living/carbon/human/H = M
+				if(H.stat != 1)
+					if (volume >= overdose)
+						if(H.losebreath >= 10)
+							H.losebreath = max(10, H.losebreath-10)
+						H.adjustOxyLoss(2)
+						H.Weaken(10)
+				..()
+				return
+
+		toxin/potassium_chlorophoride
+			name = "Potassium Chlorophoride"
+			id = "potassium_chlorophoride"
+			description = "A specific chemical based on Potassium Chloride to stop the heart for surgery. Not safe to eat!"
+			reagent_state = SOLID
+			color = "#FFFFFF" // rgb: 255,255,255
+			toxpwr = 3
+			overdose = 20
+
+			on_mob_life(var/mob/living/carbon/M as mob)
+				if(ishuman(M))
+					var/mob/living/carbon/human/H = M
+					if(H.stat != 1)
+						if(H.losebreath >= 10)
+							H.losebreath = max(10, M.losebreath-10)
+						H.adjustOxyLoss(2)
+						H.Weaken(10)
 				..()
 				return
 
diff --git a/code/modules/reagents/Chemistry-Recipes.dm b/code/modules/reagents/Chemistry-Recipes.dm
index c2673b9b45..d0fb8d0cc1 100644
--- a/code/modules/reagents/Chemistry-Recipes.dm
+++ b/code/modules/reagents/Chemistry-Recipes.dm
@@ -119,6 +119,13 @@ datum
 		//	required_reagents = list("hydrogen" = 1, "carbon" = 1, "nitrogen" = 1)
 		//	result_amount = 1
 
+		water //I can't believe we never had this.
+			name = "Water"
+			id = "water"
+			result = null
+			required_reagents = list("oxygen" = 2, "hydrogen" = 1)
+			result_amount = 1
+
 		thermite
 			name = "Thermite"
 			id = "thermite"
@@ -459,6 +466,27 @@ datum
 			required_reagents = list("ethanol" = 1, "chlorine" = 3, "water" = 1)
 			result_amount = 1
 
+		potassium_chloride
+			name = "Potassium Chloride"
+			id = "potassium_chloride"
+			id = "potassium_chloride"
+			required_reagents = list("sodiumchloride" = 1, "potassium" = 1)
+			result_amount = 2
+
+		potassium_chlorophoride
+			name = "Potassium Chlorophoride"
+			id = "potassium_chlorophoride"
+			id = "potassium_chlorophoride"
+			required_reagents = list("potassium_chloride" = 1, "plasma" = 1, "chloral_hydrate" = 1)
+			result_amount = 4
+
+		stoxin
+			name = "Sleep Toxin"
+			id = "stoxin"
+			result = "stoxin"
+			required_reagents = list("chloralhydrate" = 1, "sugar" = 4)
+			result_amount = 5
+
 		zombiepowder
 			name = "Zombie Powder"
 			id = "zombiepowder"
diff --git a/code/modules/surgery/eye.dm b/code/modules/surgery/eye.dm
index ebaf436a5c..763fa63bb0 100644
--- a/code/modules/surgery/eye.dm
+++ b/code/modules/surgery/eye.dm
@@ -132,7 +132,7 @@
 		if (target.op_stage.eyes == 3)
 			target.disabilities &= ~NEARSIGHTED
 			target.sdisabilities &= ~BLIND
-			eyes.damage -= 15
+			eyes.damage = 0
 		target.op_stage.eyes = 0
 
 	fail_step(mob/living/user, mob/living/carbon/human/target, target_zone, obj/item/tool)
diff --git a/code/setup.dm b/code/setup.dm
index 62515d050c..68b7552b40 100644
--- a/code/setup.dm
+++ b/code/setup.dm
@@ -708,6 +708,8 @@ var/list/be_special_flags = list(
 //feel free to add shit to lists below
 var/list/tachycardics = list("coffee", "inaprovaline", "hyperzine", "nitroglycerin", "thirteenloko", "nicotine")	//increase heart rate
 var/list/bradycardics = list("neurotoxin", "cryoxadone", "clonexadone", "space_drugs", "stoxin")					//decrease heart rate
+var/list/heartstopper = list("potassium_phorochloride", "zombie_powder") //this stops the heart
+var/list/cheartstopper = list("potassium_chloride") //this stops the heart when overdose is met -- c = conditional
 
 //proc/get_pulse methods
 #define GETPULSE_HAND	0	//less accurate (hand)
@@ -740,4 +742,4 @@ var/list/RESTRICTED_CAMERA_NETWORKS = list( //Those networks can only be accesse
 
 //Flags for zone sleeping
 #define ZONE_ACTIVE 1
-#define ZONE_SLEEPING 0
+#define ZONE_SLEEPING 0