Vampire Refugee

The oldest vampire movie/character plot in the book: the protagonist is infected with The Virus and undergoes the Viral Transformation into a vampire or some other monstrous entity like a werewolf or zombie. They have only a short time until the curses of the Face Monster Turn asserts itself and the overwhelming thirst to eat, drink and transform their fellow man is all they know.

Before the clock runs out, they will do everything in their power to find... (Melodramatic Pause!)... a cure, use Heroic Willpower to kick ass and bring a world of hurt down on the entire race of monsters that infected them... all the while using Heroic Resolve to resist those warm bloodbags everywhere.

This is Older Than Television, going back to Mina Harker in Dracula itself. It's frequently used No Ontological Inertia to solve the problem by killing the head vampire, but more modern movies will use outright biological rather than mystical cures for the virus-based vampires.

Nowanights, has extended to just about any infectious-type creature such as Biological Mashups, and a few other Body Horror type transformations or even outright curses. Expect the hero to gain advantage from lacking the traditional weaknesses of their breed and discovering they can tap into Heroic Willpower to get a powerup to beat their sire. This last bit can get a bit silly, as the hero-cum-monster is usually starving by this point from fasting on blood.

On the bright side, since Undeath Always Ends the Vampire Refugee won't stay such for long... though whether it's because of death or a cure varies.

Compare Phlebotinum Rebel, Monsters Anonymous And Then John Was a Zombie. Contrast Transhuman Treachery. See also Stages of Monster Grief. Sub-Trope to Pro-Human Transhuman. Compare Hunter of His Own Kind

Anime and Manga

 * This is the main premise of the first Vampire Hunter D movie and novel, with the heroine hiring D to help her, complicated by the fact that her entire town is not only aware of the danger a Vampire Refugee can pose but actively on the lookout for them.
 * But subverted in the second movie. Although D and the Borghoff Brothers assume she's been carried off against her will, Charlotte Ellborne actually . Especially interesting because.
 * Well, that's what she claims..

Comic Books

 * Hannibal King in the Marvel Universe.
 * The comic 30 Days of Night had the  to beat the bad guys.
 * Andrew Bennett from House of Mystery's "I... Vampire" series straddled the line between this trope and Doomed Moral Victor. Though he did jump at the opportunity for a cure when he chanced upon one, for most of his unlife Bennett harbored no hope of restoring himself, and was preoccupied with exterminating a bloodline of evil vampires he'd mistakenly sired, by converting his onetime lover. To survive, he bought blood by the bottle from street people.

Film

 * The page picture is from Rise: Blood Hunter. Though Sadie is very determined to get revenge for her unwilling (and unplanned) vampirisation on the bloodsuckers of L.A., she slips when it comes to feeding on a poor schlub offering her a lift.
 * The Star/Laddie subplot of The Lost Boys. "YOU TRIED TO MAKE ME A KILLER!"
 * The Fly (the remake) has doctor Brundle try to reverse the onset of the Biological Mashup he's becoming. He fails.
 * The sequel with his son does get to stay human though. Albeit by dumping the fly genes into the Corrupt Corporate Executive, making him a mutant slug, kept alive for study in a dark pit.
 * The first Blade movie had the vampire antidote for the Girl of the Week. Interestingly, it seems this cure sticks around, and at least two more characters get cured of vampirism in the sequels.
 * However, it can't cure the eponymous character of vampirism without taking away his nifty powers (he just uses a serum to suppress his vampiric bloodlust), nor can it cure anybody who was born a vampire. It can only cure vampirism if one contracts it via a bite.
 * Ultraviolet.
 * Incidentally, it seems that the girl became much more bloodthirsty (or downright sadistic) after the cure was applied. `
 * Nick from The Forsaken. It is heavily implied in the movie that all vampire hunters have always mostly consisted of people who have been bitten. The rules of vampirism state that all potential vampires are freed from their curse if the "head vampire" who originated that strain is killed (an idea mocked in the Vampire: The Masquerade Bloodlines video game).
 * Cursed is the werewolf version of this trope.
 * Van Helsing, turned into a werewolf, must kill Dracula as a werewolf (as was prophesied), but Carl and Ana have to get the cure for lycanthropy to him before the stroke of midnight (as that's when he'll permanently be a werewolf). Fortunately for Van Helsing, the stroke of midnight lasts about twenty minutes.
 * In the last Ginger Snaps movie, Ginger is given a prophecy that she will need to kill the infected child that bit her to avoid becoming a werewolf herself. In a subversion.
 * The third Return of the Living Dead movie featured the heroine finding new and interesting ways to cause physical pain to keep from succumbing to her desire to eat folk.
 * In The Batman vs. Dracula, our hero finds a cure for vampirism, but it won't work on Dracula himself—just those he's turned.
 * Rayne from the first Resident Evil film gets bitten early on. She spends the rest of the time kicking ass to get everyone out and able to administer the cure to her..

Literature
"Jander: (jumps through hoops to save an elf from being messily killed by another vampire) Elf: You're a traitor to your kind, Jander, and I hate you for it!"
 * Mina Harker in Dracula, making it as old as the book.
 * The Dresden Files features The Fellowship of Saint Giles, individuals who've been bitten by Red Court vampires, gaining a portion of their power and their vampiric blood lust. However, since they haven't actually killed anyone by feeding, they haven't turned into the horrific bat-demons Red Court vampires really are. As part of their membership, they gain magical tattoos that help them keep the hunger in check and turn darker as they start to lose control..
 * The Good Ghouls series—the main character gets turned into a vampire and finds out the only way to get turned back is to kill her own maker. Several problems: firstly, it has to be her who kills her maker; secondly, any vampire higher up the chain, including her maker, is immune to any frontal attack from a lower-ranking vampire, so she has to be sneaky; and thirdly, she doesn't even know who turned her. In the end.
 * Darren of Cirque Du Freak.
 * Igor Dolinsky in Night Watcher. Arguably, all the other "true vampires" qualify as well, as they are the ones who no longer need blood, though they aren't human anymore either (but then, neither is Igor, strictly speaking).
 * Kostya in the Night Watch series is . He became a biologist to prevent his vampirism from turning him into a monster. By the third book, he even   just so he could be normal.
 * In the Ravenloft novel Vampire of the Mists, Jander Sunstar was desperate to find a cure for his vampirism once he finally managed to become free to seek that cure; he was heartbroken to learn that there was no cure other than true death (and possibly not even then).
 * In one of the prequel short stories, he was granted asylum by Eldath, but blew it to protect someone else. Also, in an example of (probably unintentional) dark meta-humor, Jander is told by a human wizard that there's no known cure, but in Forgotten Realms there actually is one - the High Magic ritual "Revival" heals an elf of any unnatural conditions, even undeath. It's little known because it's rarely used, and it's rarely used... mainly due to attitude: elves all too often would rather look down at someone less fortunate than offer help.  Jander tasted this too -  he was killed and enslaved by a master vampire whom he tried to stop, and all he got from other elves  was spite.

Live Action TV

 * One episode of Odyssey 5 had Taggart becoming a Synthetic, a nanomachine/cyborg/android. He and his friends try to reverse it, but in the end he manages to hack the Deus Est Machina that made him into reverting the process.
 * Dr. Kevin on The 4400 experimented on himself with Promicin to give himself powers. He got very mutated at first, but then found the cure for that.
 * The eighties show Werewolf was built around this premise.
 * Maya on Heroes was desperate to get rid of her Superpower Of Involuntary Mass Destruction. Subverted in that she didn't have an Action Girl bone in her body.
 * She was beginning to bud into an Action Girl when she voluntarily used her power against a Face Heel Turn Mohinder, but that Character Development came to an end.
 * Gordon on Supernatural had the perfect set-up for becoming a Vampire Refugee, but since he knew there was no way to undo the change, he decided instead to kill Sam and then himself..
 * In season 6, this trope was played completely straight as  gets bit, angsts, kicks some ass, and then gets cured at the end of the episode.
 * On My Babysitter's a Vampire, Sarah (the babysitter) was turned into a vampire by her boyfriend. However, she refuses to eat humans and exists on animal blood or blood substitutes while trying to find a cure.

Tabletop Games

 * Mage: The Awakening features rare wizard refugees in the form of the Banishers. Banishers had their Awakening go wrong in some way or another (it's suggested more than a few of them literally gazed into the Abyss); as a result, the very use of magic causes them revulsion, and they spend much of their time hunting down and killing other mages out of the belief that magic is, at its core, evil.
 * In Vampire: The Masquerade, vampires would occasionally seek out Golconda, a mystical state of transcendence. Nobody could agree on what Golconda was, but one persistent rumor was that it would allow you to shake off the Embrace and become mortal again. One scenario had the villain trying to eat his way up his "family" tree to cure himself.

Video Games

 * One of the paths in Tsukihime involves Shiki being increasingly possessed by an ancient vampire sorcerer, gaining the usual powers and bloodlust as his will rapidly erodes, and having to defend himself against his former companions. At first he holds out for a solution from the Church, but when that doesn't pan out he.
 * Also from the Tsukihime universe, Sion Eltnam Atlasia is entirely based on this. She even goes as far as to create an alchemical substitute for blood to deal with her cravings as a temporary measure. (It works, but only because of the extenuating circumstances.)
 * This becomes an optional quest in The Elder Scrolls: if the hero becomes a vampire. In Daggerfall it is offered by a vampire hunter who give you a choice instead of killing you (you can also drink the potion a witch conven ask you to transport). In Morrowind, it is given by reading a book about a cured vampire and doing a favor for Molag Bal, the "patron" daedra of vampires. In Oblivion it involves collecting a long list of ingredients to make a potion.
 * The plot of Bloodnet revolves around this.
 * As does the plot of Neverwinter Nights 2: Mask of the Betrayer, at least for a good-aligned character.
 * Vampire: The Masquerade Bloodlines features a "thin-blood" down by the beach who's desperately trying to find a way out of his new condition. You can either a) let him down easy and tell him that he can at least try to go on (un)living, or b) bilk him for all he's worth by selling him a "stake of pure rosewood" he can use to kill the "head vampire" or some vampirism-curing "unicorn blood."
 * Or both.