diff --git a/code/modules/mob/living/carbon/carbon.dm b/code/modules/mob/living/carbon/carbon.dm
index 746e6400690..00c070b2c4e 100644
--- a/code/modules/mob/living/carbon/carbon.dm
+++ b/code/modules/mob/living/carbon/carbon.dm
@@ -1122,6 +1122,14 @@ GLOBAL_LIST_INIT(ventcrawl_machinery, list(/obj/machinery/atmospherics/unary/ven
 	KnockDown(knockdown)
 	return TRUE
 
+/mob/living/carbon/proc/shock_reduction()
+	var/shock_reduction = 0
+	if(reagents)
+		for(var/datum/reagent/R in reagents.reagent_list)
+			if(R.shock_reduction)
+				shock_reduction += R.shock_reduction
+	return shock_reduction
+
 /mob/living/carbon/proc/can_eat(flags = 255)
 	return 1
 
diff --git a/code/modules/mob/living/carbon/carbon_life.dm b/code/modules/mob/living/carbon/carbon_life.dm
index e991281fb7f..fc7df749d7d 100644
--- a/code/modules/mob/living/carbon/carbon_life.dm
+++ b/code/modules/mob/living/carbon/carbon_life.dm
@@ -293,10 +293,11 @@
 /mob/living/carbon/update_damage_hud()
 	if(!client)
 		return
+	var/shock_reduction = shock_reduction()
 	if(stat == UNCONSCIOUS && health <= HEALTH_THRESHOLD_CRIT)
 		if(check_death_method())
 			var/severity = 0
-			switch(health)
+			switch(health - shock_reduction)
 				if(-20 to -10)
 					severity = 1
 				if(-30 to -20)
@@ -323,7 +324,7 @@
 			clear_fullscreen("crit")
 			if(getOxyLoss())
 				var/severity = 0
-				switch(getOxyLoss())
+				switch(getOxyLoss() - shock_reduction)
 					if(10 to 20)
 						severity = 1
 					if(20 to 25)
@@ -345,7 +346,7 @@
 		//Fire and Brute damage overlay (BSSR)
 		var/hurtdamage = getBruteLoss() + getFireLoss() + damageoverlaytemp
 		damageoverlaytemp = 0 // We do this so we can detect if someone hits us or not.
-		if(hurtdamage)
+		if(hurtdamage - shock_reduction > 0)
 			var/severity = 0
 			switch(hurtdamage)
 				if(5 to 15) severity = 1
diff --git a/code/modules/mob/living/carbon/human/human_life.dm b/code/modules/mob/living/carbon/human/human_life.dm
index 38edfd103f8..069c56367fc 100644
--- a/code/modules/mob/living/carbon/human/human_life.dm
+++ b/code/modules/mob/living/carbon/human/human_life.dm
@@ -658,14 +658,17 @@
 						to_chat(src, "<span class='userdanger'>You feel [pick("terrible", "awful", "like shit", "sick", "numb", "cold", "sweaty", "tingly", "horrible")]!</span>")
 						Weaken(6 SECONDS)
 
+#define BODYPART_PAIN_REDUCTION 5
+
 /mob/living/carbon/human/update_health_hud()
 	if(!client)
 		return
 	if(dna.species.update_health_hud())
 		return
 	else
+		var/shock_reduction = shock_reduction()
 		if(healths)
-			var/health_amount = get_perceived_trauma()
+			var/health_amount = get_perceived_trauma(shock_reduction)
 			if(..(health_amount)) //not dead
 				switch(health_hud_override)
 					if(HEALTH_HUD_OVERRIDE_CRIT)
@@ -687,9 +690,10 @@
 				healthdoll.icon_state = "healthdoll_DEAD"
 				for(var/obj/item/organ/external/O in bodyparts)
 					var/damage = O.get_damage()
+					damage -= shock_reduction / BODYPART_PAIN_REDUCTION
 					var/comparison = (O.max_damage/5)
 					var/icon_num = 0
-					if(damage)
+					if(damage > 0)
 						icon_num = 1
 					if(damage > (comparison))
 						icon_num = 2
@@ -704,6 +708,8 @@
 				healthdoll.overlays -= (cached_overlays - new_overlays)
 				healthdoll.cached_healthdoll_overlays = new_overlays
 
+#undef BODYPART_PAIN_REDUCTION
+
 /mob/living/carbon/human/proc/handle_nutrition_alerts() //This is a terrible abuse of the alert system; something like this should be a HUD element
 	if(HAS_TRAIT(src, TRAIT_NOHUNGER))
 		return
diff --git a/code/modules/mob/living/carbon/human/human_mob.dm b/code/modules/mob/living/carbon/human/human_mob.dm
index 04072b6cc74..ca4a3cc2f51 100644
--- a/code/modules/mob/living/carbon/human/human_mob.dm
+++ b/code/modules/mob/living/carbon/human/human_mob.dm
@@ -2011,8 +2011,8 @@ Eyes need to have significantly high darksight to shine unless the mob has the X
 		O.toggle_biolum(TRUE)
 		visible_message("<span class='danger'>[src] is engulfed in shadows and fades into the darkness.</span>", "<span class='danger'>A sense of dread washes over you as you suddenly dim dark.</span>")
 
-/mob/living/carbon/human/proc/get_perceived_trauma()
-	return min(health, maxHealth - getStaminaLoss())
+/mob/living/carbon/human/proc/get_perceived_trauma(shock_reduction)
+	return min(health, maxHealth - getStaminaLoss()) + shock_reduction
 
 /mob/living/carbon/human/WakeUp(updating = TRUE)
 	if(dna.species.spec_WakeUp(src))
diff --git a/code/modules/reagents/chemistry/reagents/medicine.dm b/code/modules/reagents/chemistry/reagents/medicine.dm
index 48d5277fc9a..f1a3f4cddbe 100644
--- a/code/modules/reagents/chemistry/reagents/medicine.dm
+++ b/code/modules/reagents/chemistry/reagents/medicine.dm
@@ -23,6 +23,10 @@
 	shock_reduction = 200
 	taste_description = "numbness"
 
+/datum/reagent/medicine/hydrocodone/on_mob_life(mob/living/M) //Needed so the hud updates when injested / removed from system
+	var/update_flags = STATUS_UPDATE_HEALTH
+	return ..() | update_flags
+
 /datum/reagent/medicine/sterilizine
 	name = "Sterilizine"
 	id = "sterilizine"