History Main / MainliningTheMonster

*** In ''TabletopGame/{{Ravenloft}}'', vampires from the Kargat secret police dole out their blood to human minions, the Kargatane, as a means of increasing their strength and delaying their rate of aging.

* In ''Series{{Powers}}'', a Playstation Network original series based on the comic book series of the same name, the ability-enhancing drug Sway is synthesized from [[spoiler:Wolfe's blood.]] This normally wouldn't be a big issue, but [[spoiler:Wolfe wants it all back, [[{{LifeDrinker}} and then some]].]]

* If they weren't a ''massively'' profitable source of marketable food for humans, the B-Ms of ''Manga/BioMeatNectar'' would've surely been written off as a bad design and destroyed as soon as their appetite for people was noticed. Instead, the CorruptCorporateExecutive whose company created them writes off one catastrophic BM escape after another, and is perfectly content to slaughter innocents [[spoiler:and his own son]] to protect his "product"'s public image.
* One episode of ''Anime/{{Gintama}}'' is about a rural village that is plagued by hordes of monsters... ''RPG monsters''. The town quickly learns the definition of lootsplosion and bullies away all the mercenaries that they were desperately calling for earlier. Unfortunately for them and the main characters, the gold mine runs out when they kill the final boss and the beasts' creator thanks them for their greed, leaving. The main characters discuss this and then go back to fighting over 100 yen on the ground.
* One interpretation of what Embryo does to Aura in ''Anime/CrossAnge'' to collect "Mana" for his utiopian ideal society is this.
* One chapter of ''Manga/SilentMobius'' centers on the drug "Domel," a performance enhancer that has the unfortunate side effect of mutating users into monsters and then melting down when their bodies are no longer able to withstand the changes. It's extracted from a captive Lucifer Hawk, an interdimensional demon.
* ''Anime/PuellaMagiMadokaMagica'': The Grief Seeds dropped by [[MonsterOfTheWeek witches]] when they are killed are given to [[MentorMascot Kyubey]] for him to [[PlotCoupon use to stave off the heat death of the universe.]] [[spoiler: [[TheReveal It’s too bad that]] the witches [[WasOnceAMan were once magical girls]] that were [[TragicMonster intentionally corrupted]] by [[EvilAllAlong Kyubey]] [[WellIntentionedExtremist for this]] [[PoweredByAForsakenChild exact purpose.]]]]

* In the French comic ''L'Imploseur'', the miracle drink Ultra which boosts reflexes, muscles, etc. turns out to be [[spoiler: the blood of a goat-human hybrid]].
* One of the reasons Gargamel goes after Franchise/TheSmurfs is because they are an ingredient in a formula for the Philosopher's Stone.
* In the ''Franchise/{{Alien}}'' Verse, aliens produce Royal Jelly which has the same role for this species as it has for real-life bees. However, it is also an extremely valuable substance in human society, used as a powerful and mind-enhancing drug for wealthy individuals. Since the only source of Royal Jelly is often deep inside an alien hive, collecting it can be very dangerous. The ''Hive'' mini-series details such an operation.
* Mutant Growth Hormone was a popular drug in the MarvelUniverse, and still resurfaces from time to time despite Comicbook/{{Daredevil}}'s best efforts.
* Marvel's original run of ''ComicBook/UltimateXMen'' has Banshee, a performance-enhancing drug for mutants that significantly increases their powers, which was created from [[spoiler: Wolverine's blood]].
* A character in ''ComicBook/{{Transmetropolitan}}'' injects molecularly [[MatterReplicator replicated]] [[CrossesTheLineTwice Hitler pee]].
* In NOW Comics' ''[[WesternAnimation/TheRealGhostbusters Slimer!]]'' series, a pair of unscrupulous, down-on-their-luck mechanics attempt to capture Slimer and bottle his slime upon discovering that the stuff can keep a car's radiator from overheating ''no matter what''.
* Inverted in ''ComicBook/{{Empire}}'', where the tyrannical Golgotha keeps his inner circle in line by feeding them an addictive substance known as "eucharist," which is [[spoiler:made from the blood of the imprisoned superhero Endymion.]]

* On ''Film/PetesDragon1977'', [[SnakeOilSalesman Doctor Terminus]] wants to get his hands on Elliot (the titular dragon) to be made into medicines.
* In ''Film/PacificRim'', there's a lucrative black market selling body parts harvested from dead kaiju, and Hannibal Chau is its king. Aside from the kaiju brains (which have too much ammonia), every part of the kaiju is useful (or at least, Chau has convinced his customer base of this fact), even their feces and skin parasites. Thankfully the black market dealers are smart enough to wait until the PPDC does their job and renders the kaiju ''dead'' before moving in to make their money.

* In ''[[Literature/RepairmanJack All The Rage]]'', blood from Scar-lip the rakosh is the sole source of the PsychoSerum Berzerk.

* ''Franchise/{{Dune}}'''s sandworms are the source of the invaluable Spice, without which galactic civilization would collapse. While keeping them captive is unfeasible to say the least, the need to preserve their species runs at odds with the Fremen drive to make Arrakis more livable for humans (due to water, a necessary component of any reasonably human-inhabitable environment, being lethal to the worms), making it a ''major'' political issue.
* In "Andy Warhol's Dracula", part of Creator/KimNewman's ''Literature/AnnoDracula'' series, the central character is a drug dealer whose product uses vampire blood as its key ingredient.
* In Creator/AlastairReynolds' ''Literature/TerminalWorld'', the world has been divided up into differing areas of technology, where the laws of reality are literally different from one are to the next, limiting how advanced certain items can be in certain areas. For the people of this world, traveling ''between'' these areas involves suffering from the debilitating "Zone Sickness" that, in severe enough cases (or too fast of a transition between different zones) can kill. Fortunately, creatures called Carnivorgs can synthesize a medicine that alleviates the sickness...''un''fortunately, as their name would suggest, the Carnivorgs are vicious carnivorous cyborgs who [[BrainFood harvest the brain matter]] from the people they capture.
** Also from Reynolds: In ''[[Literature/RevelationSpaceSeries Chasm City]]'', an alien marooned on Yellowstone is the only source of a drug that can suppress the [[BodyHorror melding plague]].
* Inverted -- or maybe not -- in one of the ''Sonja Blue'' novels, in which demons use the corpses of especially-evil humans as hard drugs. One demon gets bribed with some of Hitler's teeth.
* ''Literature/{{Animorphs}}'': The Venber are a sentient race with unusual physical properties, chief among them that if they are brought to a temperature above freezing, they melt. The resulting liquid is apparently an excellent coolant fluid for supercomputers, and the Venber were hunted to extinction by "The Five" for it.
* Triffids in ''Literature/TheDayOfTheTriffids'' are initially culled because their predatory habits pose a threat to humans, but when it turns out they can be exploited as a source of a high quality oil, they are captured, have their stingers removed, and farmed instead.
* One of the ''Franchise/StarWarsExpandedUniverse'' novels had a spider monster that produced a spice called glitterstim, which needs to be harvested in complete darkness. The spider uses it to make its webs, while other creatures use it for some kind of mind reading (and just to get high).
* Star's Tears, from "We Who Stole The Dream", a James Tiptree Jr. short story.
* The ''Literature/MercyThompson'' series has vampire blood as a restorative.
* The Red Court from ''Literature/TheDresdenFiles'', whose saliva is addictive and a fairly powerful narcotic, use this to hold onto political power in Latin America.
* At the end of ''Literature/TheRelic'', the monster-creating reovirus is used by one of the survivors to concoct a new street drug, Glaze. [[spoiler: It turns out to have some ''nasty'' side effects in the sequel, and its derivatives are even worse.]]

* In ''Literature/TheGolgothaSeries'', Clay begins keeping some of the worm-like Tainted parasites birthed by the MotherOfAThousandYoung in captivity so he can harvest their secretions as ingredients for a regenerative serum.
* In ''Literature/AlienInASmallTown,'' kreg is a live alien virus. The human body can fight off the infection, but the user experiences a hallucinogenic high until it does; and the user's body does not gain a lasting immunity, so subsequent use will give a longer and longer high until the user may eventually be trapped in a hallucinogenic state lasting for days.

* In the UsefulNotes/NaNoWriMo novel ''Literature/AndThenThereWereMonsters'', this is the only way the people of Grandsbriar have survived so long. In addition to collecting parts from monsters they kill for potions and weapons, they've also started trying to domesticate some of the less hostile types, like leaf dancers. It's slow going, because most of the monsters don't reproduce too close to human habitation.
* In Michael Reaves's ''The Shattered World'', dragons are hunted through the Abyss between [[FloatingContinent fragments]] by "dragoneers", who harvest their hide, flesh, bones and oil. This is dangerous yet profitable, as ''only'' dragon-derived materials can be enchanted to stay on course and maintain ArtificialGravity within the Abyss, so there's no other way to build flying ships.
* One of the stories in ''LightNovel/ASimpleSurvey'' revolves around this. The narrator is a professor who specializes in researching monsters that become pests to human society. By finding ways to profit off them, he can create an incentive for peasants to hunt the monsters and keep their populations in check. In the story, he and his assistant dissect a troll and discover uses for its stomach acid and liver. [[spoiler:But releasing this information doesn't have the intended effect. The peasants, instead of killing the trolls, gather the materials non-lethally (by forcing the trolls to vomit out acid, and cutting away pieces of the liver at a time). On top of that, they've even started setting out food for the trolls, increasing their population]].
* In Tim Lebbon's ''Relics'', the protagonists fall afoul of black marketeers who covertly trade in fantastical creatures' body parts. And discover that such creatures are so rare they're considered mythical ''because'' humans have been butchering them for their body parts for thousands of years.

* In an episode of ''Series/StargateSG1'', a civilization keeps a Goa'uld queen [[spoiler:(actually the dying Tok'ra queen)]] captive in a tank so they can harvest her symbiotes to make an elixir that can cure any illness.
* ''Series/{{Torchwood}}'':
** [[InvertedTrope Inverted]] in [[spoiler: Children of Earth]], in which [[spoiler: the 456 want our children so that they can get high off them.]]
** In an episode a small group of humans exploit a SpaceWhale with a HealingFactor stranded on Earth; they use it for a cheap source of meat to wholesale.

** In "Thin Ice", the villain arranges for people to [[spoiler:get pulled through the frozen Thames's ice to feed a giant sea monster that's chained to the riverbed. Then he has its ''poop'' dredged up as fuel for his steel mills.]]
* In ''Series/TheSarahJaneAdventures'' first episode, the Bane Mother's excretions are the main ingredient in Bubble Shock cola "It's organic!"
* ''Series/TheTenthKingdom'' has rather literal fairy dust, as in the dead remnants of a fairy, which is recreationally snorted by trolls.
* In ''Series/{{Lexx}}'', Kai was animated by "protoblood", a secretion from the last of the Insects. Re-animated assassins like him were part of how His Divine Shadow maintained his tyrannical grip on power.

* Vampire dust in the short-lived ''Series/{{Blade}}'' TV series is another example.
* Sam on ''Series/{{Supernatural}}'' did this a bunch of times with demon blood. Sam used it during the season 4 arc to enhance his psychic capabilities to be able to remove a demon possessing a victim without harming the host. He then becomes somewhat addicted to the substance, even keeping a victim possessed so that he can "bulk up" for the final fight.
* In one episode of the ''Series/{{Monsters}}'' horror anthology, ''barbers'' made a mutually beneficial pact with vampires. Vampires have apparently evolved into giant immobile leeches and need the barbers and their customers to offer them their blood. In return, the barbers and customers are given small amounts of the vampires' blood which greatly extends their lifespans. The red swirling barber poles are symbols of the "blood for blood" pact. The narrator and his friend who initially intended to expose the barbers' connection with vampires become customers after tasting the vampires' blood. It helps that nobody is really being hurt in this arrangement.
* In the Playstation Network original series "Powers" (based on the comic book series of the same name), the ability-enhancing drug Sway is synthesized from [[spoiler:Wolfe's blood.]] This normally wouldn't be a big issue, but [[spoiler:Wolfe wants it all back, [[{{LifeDrinker}} and then some]].]]
* ''Series/AgentsOfSHIELD'' reveals the [[FunWithAcronyms Project T.A.H.I.T.I.]] that revived Agent Coulson revolves around draining the fluids from a Kree corpse. One of those was the regenerative serum that causes terrible psychological consequences unless the test subject's memories are changed.
* An episode of ''Series/{{Moonlight}}'' involves a new drug called Black Crystal, that makes a human feel the high of being a vampire for a few hours. Naturally, it's produced by "milking" vampires. Unfortunately, keeping vampires sedate involves poisoning them with high amounts of silver, which make its way into the drug, eventually resulting in silver poisoning in the humans who take it. The "drug farm" was maintained by a 700-year-old vampire named Lola (a former PirateGirl), who has no compunctions about using fellow vampires for this purpose.
* Inverted in an episode of ''Series/{{Grimm}}'', in which [[OurWerebeastsAreDifferent Wesen]] are killing ordinary humans in order to dry and powder their organs, which are sold for medicinal purposes, including "male enhancement".

* One ''TabletopGame/{{Shadowrun}}'' supplement's shadowtalk includes posts by a sicko who'd kept an Awakened leopard with a HealingFactor captive for years, periodically skinning it alive and selling the pelts. The same poster speculated about the possibility of catching a giant regenerating species of shark and selling its meat over and over again.
* The ''TabletopGame/WorldOfDarkness'' game series treats vampire blood as a drug. Consuming a vampire's Vitae gives a mortal access to basic vampire Disciplines and stops the aging process. When the Vitae is expended, aging not only resumes, but catches up, meaning really old ghouls will spontaneously die and crumble to dust if they don't get their fix.
** Three groups from ''TabletopGame/HunterTheVigil'' use monsters in one way or another:
*** Ashwood Abbey sees monsters as good fun. One of their common reactions to meeting some new supernatural creature is, "Is there any way I can get high off of the internal processes of this being?"
*** The Cheiron Group treats monsters as sources of medicinal products. Their agents have access to Endowments that consist of supernatural transplants or chemical augmentations, all harvested from captured creatures of the night. Some are even put on the market as pharmaceuticals for public consumption.
*** The founder of the Malleus Maleficarum, Padre Ambrogino Baudolino, is a ghoul. He has Hunters bring him vampires from which to feed.
* In the ''TabletopGame/{{Ravenloft}}'' D&D setting, vampires from the Kargat secret police dole out their blood to human minions, the Kargatane, as a means of increasing their strength and delaying their rate of aging.

* Dwarven settlements in the ''TabletopGame/ForgottenRealms'' sometimes keep captive [[MookMaker deepspawn]] as a food source, feeding them livestock so the aberrations will make numerous copies of meat animals. This can easily backfire on the deepspawn-keepers, if one of their captive monsters ever manages to sink its teeth into something more dangerous than cattle.

* The Empire of ''TabletopGame/{{Warhammer}}'' Fantasy also gets into the act. Normally intolerant of monsters as they're seen as expressions of Chaos, they have discovered certain monstrous species like the griffin have stabilized and are fantastic for riding into battle. So the Empire either have them privately housed at a Lord's manor or they're kept in the Imperial Zoo (which even includes a dragon for the really desperate battles).
* In ''TabletopGame/{{Aberrant}}'', there are several illegal drugs (most of which will temporarily give a baseline superpowers) made out of the organs of novas.
* ''TabletopGame/{{Pathfinder}}'' has a few:
** Enterprising, foolhardy adventurers can extract daemonic spinal fluid and alchemically process it into a potent drug. If you don't mind drinking a fiendishly addictive concoction that's MadeOfEvil and the [[YourSoulIsMine digested remnants of damned souls]], it gives quite a boost.
** ''Wealthy'', foolhardy clientele can snort {{Mummy}} paste if they don't mind the risk of [[TheVirus spontaneously transforming]] into an undead monstrosity. This is a case of AluminumChristmasTrees: mummy powders and extracts were used as drugs on and off for centuries and as late as the 1920s, albeit -- so far as anyone knows -- without that particular side effect.
** Shulns, gigantic rodents native to the Darklands, naturally produce two very valuable resources -- the [[FantasyMetals adamantine]] deposited within their teeth and claws and their potent paralytic drool. They're consequently often hunted to harvest their claws and fangs by people wishing to extract the valuable metal within or to collect their venom, although this needs to first be treated alchemically to avoid its normally rapid decay.

[[folder:Video Games]]
* The profit margin for the ''VideoGame/LobotomyCorporation'' is entirely based on using [[EldritchAbominations horrific abnormalities]] to harvest Qliphoth energy from them.

* In the ''VideoGame/VampireTheMasqueradeBloodlines'' sidequest "Thinned Blood", Vandal Cleaver is revealed to have captured a fledgeling vampire and kept her restrained to leech off her blood.
* ''VideoGame/BorderlandsThePreSequel'' has [[spoiler: The Eye of Helios, a WaveMotionGun powered by the remains of the final boss of the first game fueled by [[GreenRocks Eridium slag]]. It is destroyed by Moxxi, Roland and Lilith to keep Jack from abusing its power.]]
* ''VideoGame/BioShock'': The little sisters, creepy shells of the children they once were, are organic factories of ADAM, the substance that powers the gene-manipulating plasmids, drug of choice for the Splicers that inhabit Rapture. Even the player has a choice to harvest them for a bigger payday instead of rescuing them.
* ''VideoGame/UltimaVII'' had Silver Serpent Venom as the local [[FantasticDrug super-steroid]] of choice; The Avatar could discover and ransack the facility where the Silver Serpents were being milked.
* In ''VideoGame/WorldOfWarcraft'', the Undercity has an engorged Blight Worm chained up that periodically vomits out some green goop, which is collected and used by the Apothacarium in developing Blight and maybe other useful concoctions.
** A much better example is anything related to demon blood. Powerful demons are able to corrupt mortals with their blood. Though once corrupted, they seldom come back for more, they DO often server as lackeys prior to their reward of blood and, once corrupted, typically serve their masters. There are a few instances (notably Grom Hellscream) of characters who do return for another dose.
** Kael'Thas and his Blood Elves are fond of this. They are capable of draining mana from any creature (one of the racial abilities even reflected this). Of note is their imprisonment of a Naaru to drain its energy for their paladins and of Magtheridon to drain his blood for Kael'Thas's Felsword Blood Elves. Kael'thas's master, Illidan, also used Magtheridon's blood to transform orcs and other servants.

* In ''Videogame/FiveNightsAtFreddys3'', the managers of Fazbear's Fright are former Freddy Fazbear fans who decided to create a nostalgic horror museum based upon the now-dead Freddy Fazbear's Pizza and the infamous stories surrounding it, up to and including digging up and reusing one of the killer animatronics from before the ''original'' game. [[spoiler:Said animatronic is also the suit originally used by [[GreaterScopeVillain the child killer who gave the pizzeria its infamy]], only now with his corpse trapped inside following a KarmicDeath.]]

[[folder:Web Comics]]

* Black Glass in ''Webcomic/KillSixBillionDemons'' is a unique narcotic that can give a high to ''any'' species, even angels and devils. It's refined from the corpses of gods.

Compare MilkingTheMonster, where it's the very ''presence'' of the monster that works to someone's financial or social/political advantage. Cases where the monster is self-aware and its "gifts" are plot-enabling are SentientPhlebotinum; those in which the monster is portrayed sympathetically, suffering in its captivity, overlap with PoweredByAForsakenChild. Sometimes overlaps with ThePowerOfBlood. If it's specifically the monster's ''waste'' that's the desired substance it's SolidGoldPoop.

* In ''Manga/{{Drifters}}, the Bronze Dragon tries to cop an attitude with the Ends' Black King. Irritated, the King uses his powers over life to ''fill'' the Dragon to bursting with it... in the form of ''cancer boils''. The thing is, those boils are made of the same bronze metal of the Dragon's skin, so the Ends' army simply nailed the Dragon to the ground and began tearing them off as a cheap and easy source of metal for their weapons and currency.

** ''Wealthy'', foolhardy clientele can snort {{Mummy}} paste if they don't mind the risk of [[TheVirus spontaneously transforming]] into a [[OurGhoulsAreCreepier flesh-eating undead monstrosity]].[[note]]A case of AluminumChristmasTrees: ground mummy and extracted resins were used as a drug on and off for centuries and as late as the 1920s, albeit -- so far as anyone knows -- without those particular side effects.[[/note]]

* ''VideoGame/DmCDevilMayCry'' has an example that is basically the same as the ''Futurama'' example below, where a popular energy drink is really just the spewings of a succubus.

* Inverted in ''[[ComicBook/{{Empire}}]]'', where the tyrannical Golgotha keeps his inner circle in line by feeding them an addictive substance known as "eucharist," which is [[spoiler:made from the blood of the imprisoned superhero Endymion.]]

* ''Anime/PrincessMononoke'': The Forest Spirit has power over life and death, and his blood is believed to grant immortality, which is why the Emperor of Japan has placed a bounty on it. When the Forest Spirit is decapitated during his Night Walker transformation, his blood turns into a WorldWreckingWave that sucks the life out of any living thing it comes in contact with. After his head is returned, his blood turns into a WorldHealingWave, kick-starting a new forest as well as healing the lepers and Ashitaka's curse.

* ''VideoGames/CityOfHeroes'' has the island of Cap au Diable, named for an oddly-shaped mountain which resembles a pair of horns. Local legend claims that a holy man sealed a demon under the mountain centuries ago. When the resident MadScientist goes to sink a geothermal tap, he discovers that the legends are true... and runs the tap right into the bound demon, producing vast quantities of cheap electricity. What could possibly go wrong?

** Much, much later in "[[Recap/DoctorWhoS31E2TheBeastBelow The Beast Below]]", we get Spaceship UK [[spoiler: built around the monster and using it as an engine. And it's a nice, helpful monster, turns out]].

* [[https://en.m.wikipedia.org/wiki/Humboldt_squid Humboldt Squid]], also known as ''diablo rojos'' ([[NamesToRunAwayFromReallyFast red devil]]) is crazy aggressive during feeding, and have been known to attack humans. They're also extensively caught for calamari.

** ''Wealthy'', foolhardy clientele can snort {{Mummy}} paste if they don't mind the risk of [[TheVirus spontaneously transforming]] into a flesh-eating undead monstrosity.

* Marvel's original run of ''Ultimate X-Men'' has Banshee, a performance-enhancing drug for mutants that significantly increases their powers, which was created from [[spoiler: Wolverine's blood]].

* ''UltimaVII'' had Silver Serpent Venom as the local [[FantasticDrug super-steroid]] of choice; The Avatar could discover and ransack the facility where the Silver Serpents were being milked.

* In ''TabletopGame/Warhammer40000'', the Imperium hates aliens and usually deals with them by a lasgun shot to the head. However some aliens have proven themselves useful and so certain Imperial factions have corralled them for their own benefit. One example are the Jokaero, a barely sentient species of orangutan-like aliens who are somehow master engineers and technologists. The Jokaero can be used to upgrade existing equipment or produce unique pieces of technology, such as rings that pack as much firepower as their pistol equivalents.

* In ''WorldOfWarcraft'', the Undercity has an engorged Blight Worm chained up that periodically vomits out some green goop, which is collected and used by the Apothacarium in developing Blight and maybe other useful concoctions.

* ''Franchise/{{Dune}}'''s sandworms are the source of the invaluable Spice, without which galactic civilization would collapse. While keeping them captive is unfeasible to say the least, the need to preserve their species runs at odds with the Fremen drive to make Arrakis more liveable for humans, making it a ''major'' political issue.

* If they weren't a ''massively''-profitable source of marketable food for humans, the B-Ms of ''Manga/BioMeatNectar'' would've surely been written off as a bad design and destroyed as soon as their appetite for people was noticed. Instead, the CorruptCorporateExecutive whose company created them writes off one catastrophic BM escape after another, and is perfectly content to slaughter innocents [[spoiler: and his own son]] to protect his "product"'s public image.
* One episode of {{Anime/Gintama}} was about a rural village that was plagued by hordes of monsters... ''RPG monsters''. The town quickly learns the definition of lootsplosion and bullies away all the mercenaries that they were desperately calling for earlier. Unfortunately for them and the main characters, the gold mine runs out when they kill the final boss and the beasts' creator thanks them for their greed, leaving. The main characters discuss this and then go back to fighting over 100 yen on the ground.

* ''Anime/PrincessMononoke'': The Forest Spirit has power over life and death, and his blood is believed to grant immortality, which is why the Emperor of Japan has placed a bounty on it. When the Forest Spirit is decapitated during his Night Walker transformation, his blood turns into a WorldWreckingWave that sucks the life out of any living thing it comes in contact with. After his head is returned, his blood turns into a WorldHealingWave, kick-starting a new forest as well as healing the lepers and Ashitaka's curse.

* In NOW Comics' ''[[TheRealGhostbusters Slimer!]]'' series, a pair of unscrupulous, down-on-their-luck mechanics attempt to capture Slimer and bottle his slime upon discovering that the stuff can keep a car's radiator from overheating ''no matter what''.

[[folder:Film]]

[[folder:Live Action TV]]
* In an episode of ''Series/StargateSG1'', a civilization keeps a Gou'ald queen [[spoiler: actually the dying Tok'ra queen]] captive in a tank so they can harvest her symbiotes to make an elixir that can cure any illness.

* In the ''Series/DoctorWho'' story [[Recap/DoctorWhoS17E4NightmareOfEden "Nightmare of Eden"]], part of the plot involves the spread of a new addictive drug, and another part of the plot involves a pack of alien monsters roaming around after escaping while being transported by a zoologist. It turns out that the zoologist is the kingpin of the drug operation, and the drug itself is derived from the alien monsters.
** Much, much later we get [[Recap/DoctorWhoS31E2TheBeastBelow Spaceship UK]] [[spoiler: built around the monster and using it as an engine. And it's a nice, helpful monster, turns out]].
** In "Thin Ice", the villain arranges for people to [[spoiler: get pulled through the frozen Thames's ice to feed a giant sea monster that's chained to the riverbed. Then he has its ''poop'' dredged up as fuel for his steel mills.]]

* In ''Series/TheSarahJaneAdventures'' first episode the Bane Mother's excretions are the main ingredient in Bubble Shock cola "It's organic!"

* In the Playstation Network original series 'Powers' (based on the comic book series of the same name), the ability-enhancing drug Sway is synthesized from [[spoiler:Wolfe's blood.]] This normally wouldn't be a big issue, but [[spoiler:Wolfe wants it all back, [[{{LifeDrinker}} and then some]].]]

* Inverted in an episode of {{Grimm}}, in which [[OurWerebeastsAreDifferent Wesen]] are killing ordinary humans in order to dry and powder their organs, which are sold for medicinal purposes, including 'male enhancement'.

* In ''TabletopGame/{{Warhammer 40000}}'', the Imperium hates aliens and usually deals with them by a lasgun shot to the head. However some aliens have proven themselves useful and so certain Imperial factions have corralled them for their own benefit. One example are the Jokaero, a barely sentient species of orangutan-like aliens who are somehow master engineers and technologists. The Jokaero can be used to upgrade existing equipment or produce unique pieces of technology, such as rings that pack as much firepower as their pistol equivalents.

* ''WebComic/ThisIsTheWorstIdeaYouveEverHad'' has Nai'ka blood, which gives the imbiber magic power, at the cost of "burnout". Nai'ka are a race of naive cat-folk who usually don't comprehend hurting people. The practice is illegal, but since they're [[WhatMeasureIsANonHuman not considered people,]] it continues relatively unchecked.

* In ''{{WesternAnimation/Futurama}}'' the favorite soft drink is Slurm, which is secretly 100% slug juice. As in, it comes from a queen slug. She and her underlings have built a powerhouse corporation by marketing this highly-addictive beverage.

* Honeybees were domesticated because of this trope: if not for wax, honey and the pollination benefits to surrounding vegetation, no one would want to go anywhere ''near'' a hive of venomous, swarming insects.

* In ''TabletopGame/AgeOfAquarius'', vampire saliva is used to make a LaserGuidedAmnesia inducing drug. No profit on it is made, though, since [[{{MIB}} the Institute]], who owns the technology, is a noncommercial organization and it needs the drug itself to enforce TheMasquerade.