diff --git a/code/__defines/chemistry.dm b/code/__defines/chemistry.dm
index 1044033e0d4..887ee9cf3f7 100644
--- a/code/__defines/chemistry.dm
+++ b/code/__defines/chemistry.dm
@@ -75,6 +75,7 @@
 #define CE_BLOODRESTORE "bloodrestore"	// Iron/nutriment
 #define CE_BRAIN_REGEN  "brainfix"		// Alkysine
 #define CE_OXYGENATED   "oxygenated"	// Dexalin
+#define CE_BLOODCLOT    "bloodclot"		// Coagzolug
 
 // Deal damage
 #define CE_BREATHLOSS   "breathloss"
diff --git a/code/game/objects/items/weapons/storage/firstaid.dm b/code/game/objects/items/weapons/storage/firstaid.dm
index c7b2bc27e81..cdb0ccd0019 100644
--- a/code/game/objects/items/weapons/storage/firstaid.dm
+++ b/code/game/objects/items/weapons/storage/firstaid.dm
@@ -137,7 +137,8 @@
 	starts_with = list(
 		/obj/item/stack/medical/bruise_pack = 2,
 		/obj/item/stack/medical/advanced/bruise_pack = 2,
-		/obj/item/reagent_containers/pill/bicaridine = 2,
+		/obj/item/reagent_containers/pill/bicaridine = 1,
+		/obj/item/reagent_containers/hypospray/autoinjector/coagzolug = 1,
 		/obj/item/device/healthanalyzer = 1
 	)
 
diff --git a/code/modules/organs/internal/heart.dm b/code/modules/organs/internal/heart.dm
index 6863423ac26..f7715a8a955 100644
--- a/code/modules/organs/internal/heart.dm
+++ b/code/modules/organs/internal/heart.dm
@@ -139,7 +139,7 @@
 		var/blood_max = 0
 		var/open_wound
 		var/list/do_spray = list()
-		for(var/obj/item/organ/external/temp in owner.organs)
+		for(var/obj/item/organ/external/temp in owner.bad_external_organs)
 			if((temp.status & ORGAN_BLEEDING) && !BP_IS_ROBOTIC(temp))
 				for(var/datum/wound/W in temp.wounds)
 					if(W.bleeding())
@@ -156,6 +156,8 @@
 			if(temp.status & ORGAN_ARTERY_CUT)
 				var/bleed_amount = Floor(owner.vessel.total_volume / (temp.applied_pressure || !open_wound ? 450 : 250))
 				if(bleed_amount)
+					if(CE_BLOODCLOT in owner.chem_effects)
+						bleed_amount *= 0.8 // won't do much, but it'll help
 					if(open_wound)
 						blood_max += bleed_amount
 						do_spray += "[temp.name]"
@@ -170,7 +172,9 @@
 			if(PULSE_2FAST, PULSE_THREADY)
 				blood_max *= 1.5
 
-		if(CE_STABLE in owner.chem_effects)
+		if(CE_BLOODCLOT in owner.chem_effects)
+			blood_max *= 0.7
+		else if(CE_STABLE in owner.chem_effects)
 			blood_max *= 0.8
 
 		if(world.time >= next_blood_squirt && istype(owner.loc, /turf) && do_spray.len)
diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
index b7d99b1f30d..8b1429a1533 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Medicine.dm
@@ -1677,3 +1677,25 @@
 /datum/reagent/rmt/overdose(var/mob/living/carbon/H, var/alien)
 	if(prob(2))
 		to_chat(H, SPAN_WARNING(pick("Your muscles are stinging a bit.", "Your muscles ache.")))
+
+/datum/reagent/coagzolug
+	name = "Coagzolug"
+	description = "A medicine that was stumbled upon by accident, coagzolug encourages blood to clot and slow down bleeding. An overdose causes dangerous blood clots capable of harming the heart."
+	reagent_state = LIQUID
+	scannable = TRUE
+	color = "#bd5eb5"
+	overdose = 10
+	metabolism = REM / 3.33
+	taste_description = "throat-clenching sourness"
+	fallback_specific_heat = 1
+
+/datum/reagent/coagzolug/affect_blood(mob/living/carbon/M, alien, removed)
+	. = ..()
+	M.add_chemical_effect(CE_BLOODCLOT)
+	M.make_dizzy(5)
+
+/datum/reagent/coagzolug/overdose(var/mob/living/carbon/H, var/alien)
+	if(prob(2))
+		to_chat(H, SPAN_WARNING(pick("You feel a clot shoot through your heart!", "Your veins feel like they're being shredded!")))
+		var/obj/item/organ/internal/heart/heart = H.internal_organs_by_name[BP_HEART]
+		heart.take_internal_damage(1, TRUE)
\ No newline at end of file
diff --git a/code/modules/reagents/Chemistry-Recipes.dm b/code/modules/reagents/Chemistry-Recipes.dm
index cd81585e89b..93fc79f3418 100644
--- a/code/modules/reagents/Chemistry-Recipes.dm
+++ b/code/modules/reagents/Chemistry-Recipes.dm
@@ -478,6 +478,13 @@
 	required_reagents = list(/datum/reagent/sodiumchloride = 1, /datum/reagent/alcohol/ethanol = 1, /datum/reagent/radium = 1)
 	result_amount = 3
 
+/datum/chemical_reaction/coagzolug
+	name = "Coagzolug"
+	id = "coagzolug"
+	result = /datum/reagent/coagzolug
+	required_reagents = list(/datum/reagent/tricordrazine = 1, /datum/reagent/coughsyrup = 1)
+	result_amount = 1 // result is 1. i imagine it's because of some whacky reaction
+
 /datum/chemical_reaction/surfactant
 	name = "Azosurfactant"
 	id = "surfactant"
diff --git a/code/modules/reagents/reagent_containers/hypospray.dm b/code/modules/reagents/reagent_containers/hypospray.dm
index 93a17351abb..51ea1a7d0e1 100644
--- a/code/modules/reagents/reagent_containers/hypospray.dm
+++ b/code/modules/reagents/reagent_containers/hypospray.dm
@@ -177,6 +177,17 @@
 	. = ..()
 	desc += " This auto-injector is to be used in emergencies. It contains a small amount of inaprovaline and dexalin."
 
+/obj/item/reagent_containers/hypospray/autoinjector/coagzolug
+	name = "autoinjector (coagzolug)"
+	desc = "A rapid and safe way to administer small amounts of drugs by untrained or trained personnel. This one contains coagzolug, a quick-acting blood coagulant that will slow bleeding for as long as it's within the bloodstream."
+	volume = 5
+	flags = 0
+
+/obj/item/reagent_containers/hypospray/autoinjector/coagzolug/Initialize()
+	. = ..()
+	reagents.add_reagent(/datum/reagent/coagzolug, 5)
+	update_icon()
+
 /obj/item/reagent_containers/hypospray/autoinjector/sideeffectbgone
 	name = "sideeffects-be-gone! autoinjector"
 	desc = "A special cocktail designed to counter the side-effects of various drugs. Has 2 uses."
diff --git a/html/changelogs/geeves-heartbreak.yml b/html/changelogs/geeves-heartbreak.yml
new file mode 100644
index 00000000000..c375fd330c4
--- /dev/null
+++ b/html/changelogs/geeves-heartbreak.yml
@@ -0,0 +1,7 @@
+author: Geeves
+
+delete-after: True
+
+changes:
+  - rscadd: "Added Coagzolug, a blood coagulation chemical created by mixing tricordrazine and cough syrup. It will slow bleeding, even arterial, while in the bloodstream."
+  - rscadd: "Added Coagzolug autoinjectors to mining brute packs and the EMT stabilization kit locker."
diff --git a/maps/aurora/aurora-4_mainlevel.dmm b/maps/aurora/aurora-4_mainlevel.dmm
index 6f169556d8e..b4ba124c82d 100644
--- a/maps/aurora/aurora-4_mainlevel.dmm
+++ b/maps/aurora/aurora-4_mainlevel.dmm
@@ -44667,6 +44667,8 @@
 /obj/machinery/atmospherics/pipe/simple/hidden/supply{
 	dir = 4
 	},
+/obj/item/reagent_containers/hypospray/autoinjector/coagzolug,
+/obj/item/reagent_containers/hypospray/autoinjector/coagzolug,
 /turf/simulated/floor/tiled,
 /area/medical/first_responder)
 "bxy" = (