diff --git a/code/modules/reagents/chemistry/reagents/cat2_medicine_reagents.dm b/code/modules/reagents/chemistry/reagents/cat2_medicine_reagents.dm
index bc11c3cefce..d18e7f8ccdb 100644
--- a/code/modules/reagents/chemistry/reagents/cat2_medicine_reagents.dm
+++ b/code/modules/reagents/chemistry/reagents/cat2_medicine_reagents.dm
@@ -457,7 +457,7 @@
 	overdose_threshold = 25
 	ph = 9.1
 	var/datum/brain_trauma/mild/muscle_weakness/trauma
-	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED
+	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
 
 /datum/reagent/medicine/c2/musiver/on_mob_life(mob/living/carbon/affected_mob, seconds_per_tick, times_fired)
 	. = ..()
diff --git a/code/modules/reagents/chemistry/reagents/medicine_reagents.dm b/code/modules/reagents/chemistry/reagents/medicine_reagents.dm
index 38602b9dfda..60b1f21547b 100644
--- a/code/modules/reagents/chemistry/reagents/medicine_reagents.dm
+++ b/code/modules/reagents/chemistry/reagents/medicine_reagents.dm
@@ -102,7 +102,7 @@
 	description = "Reduces drowsiness, hallucinations, and Histamine from body."
 	color = "#EC536D" // rgb: 236, 83, 109
 	ph = 5.2
-	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED
+	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
 
 /datum/reagent/medicine/synaphydramine/on_mob_life(mob/living/carbon/affected_mob, seconds_per_tick, times_fired)
 	. = ..()
diff --git a/code/modules/reagents/chemistry/reagents/other_reagents.dm b/code/modules/reagents/chemistry/reagents/other_reagents.dm
index 4a98afc3e98..ed877787f25 100644
--- a/code/modules/reagents/chemistry/reagents/other_reagents.dm
+++ b/code/modules/reagents/chemistry/reagents/other_reagents.dm
@@ -442,7 +442,7 @@
 	description = "An ubiquitous chemical substance that is composed of hydrogen and oxygen, but it looks kinda hollow."
 	color = "#88878777"
 	taste_description = "emptyiness"
-	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED
+	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
 
 /datum/reagent/hydrogen_peroxide
 	name = "Hydrogen Peroxide"
@@ -490,7 +490,7 @@
 	metabolization_rate = 2.5 * REAGENTS_METABOLISM  //0.5u/second
 	penetrates_skin = TOUCH|VAPOR
 	ph = 6.5
-	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED
+	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
 
 /datum/reagent/fuel/unholywater/on_mob_metabolize(mob/living/affected_mob)
 	. = ..()
@@ -559,7 +559,7 @@
 	name = "Godblood"
 	description = "Slowly heals all damage types. Has a rather high overdose threshold. Glows with mysterious power."
 	overdose_threshold = 150
-	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED
+	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
 
 ///Used for clownery
 /datum/reagent/lube