diff --git a/artifacts/config_files/Drugs.ini b/artifacts/config_files/Drugs.ini
index f2780c0e..12d47595 100644
--- a/artifacts/config_files/Drugs.ini
+++ b/artifacts/config_files/Drugs.ini
@@ -18,7 +18,7 @@ PID=0
 ; this count is 4 for Buffout/Mentats/Psycho/Jet
 ; set -1 to leave this parameter unchanged
 NumEffects=-1
-; the duration of the withdrawal effects of addiction in minutes (i.e. 1440 = 24 game hours)
+; the duration of the addiction effect in game minutes (i.e. 1440 = 24 game hours)
 ; set to 0 to use the default time (7 days for all drugs except Jet)
 AddictTime=0
 ; the number of the global variable from vault13.gam responsible for displaying addiction in the character screen
diff --git a/artifacts/scripting/headers/sfall.h b/artifacts/scripting/headers/sfall.h
index 0acf25ae..06137961 100644
--- a/artifacts/scripting/headers/sfall.h
+++ b/artifacts/scripting/headers/sfall.h
@@ -277,6 +277,7 @@
 #define set_can_rest_on_map(map, elev, value)           sfall_func3("set_can_rest_on_map", map, elev, value)
 #define set_car_intface_art(artIndex)                   sfall_func1("set_car_intface_art", artIndex)
 #define set_cursor_mode(mode)                           sfall_func1("set_cursor_mode", mode)
+#define set_drugs_data(type, pid, value)                sfall_func3("set_drugs_data", type, pid, value)
 #define set_dude_obj(critter)                           sfall_func1("set_dude_obj", critter)
 #define set_flags(obj, flags)                           sfall_func2("set_flags", obj, flags)
 #define set_iface_tag_text(tag, text, color)            sfall_func3("set_iface_tag_text", tag, text, color)
diff --git a/artifacts/scripting/sfall function notes.txt b/artifacts/scripting/sfall function notes.txt
index a98f8b51..003ea029 100644
--- a/artifacts/scripting/sfall function notes.txt	
+++ b/artifacts/scripting/sfall function notes.txt	
@@ -573,6 +573,11 @@ Some utility/math functions are available:
 - enables/disables the engine function that increases the level of party members in the player leveling process
 - if the engine function is disabled, the process of leveling up party members should be performed by script functions
 
+> void sfall_func3("set_drugs_data", int type, int pid, int value)
+- overrides the parameters of drugs set in the configuration file (DrugsFile setting in ddraw.ini)
+- type: 0 - changes the value of NumEffects for the drug (see Drugs.ini for the description of NumEffects)
+        1 - changes the duration of the addiction effect for the drug (a value of 1 = one game minute)
+
 ------------------------
 ------ MORE INFO -------
 ------------------------
diff --git a/sfall/Modules/BugFixes.cpp b/sfall/Modules/BugFixes.cpp
index 98601c45..b218a466 100644
--- a/sfall/Modules/BugFixes.cpp
+++ b/sfall/Modules/BugFixes.cpp
@@ -335,7 +335,7 @@ end:
 	}
 }
 
-// take the drug pid from the list after loading sfalldb.sav
+// take the drug pid from the list after loading sfallgv.sav
 static void __declspec(naked) item_d_load_hack() {
 	__asm {
 		mov  [ebp], edi;                          // edi->queue_drug
@@ -350,7 +350,7 @@ skip:
 	}
 }
 
-// add drug pid to the list to save to sfalldb.sav
+// add drug pid to the list to save to sfallgv.sav
 static void __declspec(naked) item_d_save_hack() {
 	__asm {
 		pushadc;
diff --git a/sfall/Modules/Drugs.cpp b/sfall/Modules/Drugs.cpp
index e07e5286..454b32e5 100644
--- a/sfall/Modules/Drugs.cpp
+++ b/sfall/Modules/Drugs.cpp
@@ -292,20 +292,20 @@ void Drugs::init() {
 							drugs[i].iniNumEffects = ef;
 							fo::var::drugInfoList[set].numEffects = ef;
 						} else {
-							drugs[i].iniNumEffects = fo::var::drugInfoList[set].numEffects;
+							drugs[i].iniNumEffects = fo::var::drugInfoList[set].numEffects; // default value from engine
 						}
 						set = -1;
 						drugs[i].numEffects = set; // set -1, to use the value from the engine
-						continue;
-					}
-					drugs[drugsCount].numEffects = drugs[drugsCount].iniNumEffects = max(0, ef);
-					int gvar = GetPrivateProfileIntA(section, "GvarID", 0, iniDrugs);
-					drugs[drugsCount].gvarID = max(0, gvar); // not allow negative values
-					if (gvar) {
-						int msg = GetPrivateProfileIntA(section, "TextID", -1, iniDrugs);
-						drugs[drugsCount].msgID = (msg > 0) ? msg : -1;
-						drugs[drugsCount].frmID = GetPrivateProfileIntA(section, "FrmID", -1, iniDrugs);
-						addictionGvarCount++;
+					} else {
+						drugs[drugsCount].numEffects = drugs[drugsCount].iniNumEffects = max(0, ef);
+						int gvar = GetPrivateProfileIntA(section, "GvarID", 0, iniDrugs);
+						drugs[drugsCount].gvarID = max(0, gvar); // not allow negative values
+						if (gvar) {
+							int msg = GetPrivateProfileIntA(section, "TextID", -1, iniDrugs);
+							drugs[drugsCount].msgID = (msg > 0) ? msg : -1;
+							drugs[drugsCount].frmID = GetPrivateProfileIntA(section, "FrmID", -1, iniDrugs);
+							addictionGvarCount++;
+						}
 					}
 					drugsCount++;
 				}
@@ -315,7 +315,7 @@ void Drugs::init() {
 				MakeCall(0x43C15C, list_karma_hack, 2);
 				MakeCall(0x47A5B8, pid_to_gvar_hack, 1);
 				MakeCall(0x47A50C, perform_withdrawal_start_hack);
-				SafeWrite32(0x47A523, 0x9090EBD1); // shr ebx, 1
+				SafeWrite32(0x47A523, 0x9090EBD1); // shr ebx, 1 (fix for trait drug addict)
 				SafeWrite8(0x47A527, 0x90);
 
 				if (addictionGvarCount) {
diff --git a/sfall/Modules/Scripting/Handlers/Metarule.cpp b/sfall/Modules/Scripting/Handlers/Metarule.cpp
index 588b7c7c..ba9df558 100644
--- a/sfall/Modules/Scripting/Handlers/Metarule.cpp
+++ b/sfall/Modules/Scripting/Handlers/Metarule.cpp
@@ -117,6 +117,7 @@ static const SfallMetarule metarules[] = {
 	{"set_can_rest_on_map",     sf_set_rest_on_map,         3, 3, {ARG_INT, ARG_INT, ARG_INT}},
 	{"set_car_intface_art",     sf_set_car_intface_art,     1, 1, {ARG_INT}},
 	{"set_cursor_mode",         sf_set_cursor_mode,         1, 1, {ARG_INT}},
+	{"set_drugs_data",          sf_set_drugs_data,          3, 3, {ARG_INT, ARG_INT, ARG_INT}},
 	{"set_dude_obj",            sf_set_dude_obj,            1, 1, {ARG_OBJECT}},
 	{"set_flags",               sf_set_flags,               2, 2, {ARG_OBJECT, ARG_INT}},
 	{"set_iface_tag_text",      sf_set_iface_tag_text,      3, 3, {ARG_INT, ARG_STRING, ARG_INT}},
diff --git a/sfall/Modules/Scripting/Handlers/Objects.cpp b/sfall/Modules/Scripting/Handlers/Objects.cpp
index 107ee17b..cfe43989 100644
--- a/sfall/Modules/Scripting/Handlers/Objects.cpp
+++ b/sfall/Modules/Scripting/Handlers/Objects.cpp
@@ -18,6 +18,7 @@
 
 #include "..\..\..\FalloutEngine\Fallout2.h"
 #include "..\..\Combat.h"
+#include "..\..\Drugs.h"
 #include "..\..\Explosions.h"
 #include "..\..\Inventory.h"
 #include "..\..\LoadGameHook.h"
@@ -499,5 +500,24 @@ void sf_get_object_ai_data(OpcodeContext& ctx) {
 	ctx.setReturn(value, DataType::INT);
 }
 
+void sf_set_drugs_data(OpcodeContext& ctx) {
+	int type = ctx.arg(0).rawValue();
+	int pid = ctx.arg(1).rawValue();
+	int val = ctx.arg(2).rawValue();
+	int result;
+	switch (type) {
+	case 0:
+		result = Drugs::SetDrugNumEffect(pid, val);
+		break;
+	case 1:
+		result = Drugs::SetDrugAddictTimeOff(pid, val);
+		break;
+	default:
+		ctx.printOpcodeError("set_drugs_data() - invalid value for type argument.");
+		return;
+	}
+	if (result) ctx.printOpcodeError("set_drugs_data() - drug PID not found in the configuration file.");
+}
+
 }
 }
diff --git a/sfall/Modules/Scripting/Handlers/Objects.h b/sfall/Modules/Scripting/Handlers/Objects.h
index df882b22..74148ad4 100644
--- a/sfall/Modules/Scripting/Handlers/Objects.h
+++ b/sfall/Modules/Scripting/Handlers/Objects.h
@@ -107,5 +107,7 @@ void sf_set_object_data(OpcodeContext&);
 
 void sf_get_object_ai_data(OpcodeContext&);
 
+void sf_set_drugs_data(OpcodeContext&);
+
 }
 }