RxPG - the perfect Rx for medical Post Graduate entrance blues!
Mobile Edition | Help/Newbie? | 24/7 Support
HOT | PrePG | MCQ | DNB | Careers | Books | Colleges | Dental | DocIndia | PLAB |  USMLE  | Australia | Canada | GLOBAL | OffBeat!
Articles | Forums | MCQ Crammer | Downloads | Mnemonics | Revision Tools | Recent Shouts | All Features


A Funny look at Antimalarial Drugs

Author: willpower, Posted on Sunday, October 31 @ 18:49:26 IST by RxPG  

 FRIEND Add to My Pages   PRINTER Printer Friendly   FRIEND Email Story  FRIEND Download Story  Pharmacology alerts 

Pharmacology

Antimalarials: The Harem

Once upon a time in a parallel Universe, there was a swampy kingdom ruled by King Medico. So, the story goes that once the kingdom was attacked by an epidemic of Malaria (Attack of the Plasmodia). The King (who is you in this story) decided to send his Queens out to destroy Malaria (much like in Chess: the Queen goes out to destroy, the King sits at home and watches ESPN!) He had 10 queens (including one eunuch), a mafia couple, a cyclist-warrior, a new warrior, and a CIA agent.

Chloe-Queen (Chloroquine).
Right, so…Chloe the Queen was a pretty effective warrior; she fought fast and long.
The parasites had occupied the Temples of the Red Corpuscles and were trying to degrade the sacred substance Heme, but she complexed with Heme and together their combined forces destroyed the plasmodial membranes. She could kill most of the erythrocytic schizonts (Bloody schizos!), but couldn’t kill the resting forms in the liver (where they had set up their base camp).

She did manage to kill a few vivax babies (gametes), though, but not enough to prevent relapses.
Her strategy of complexing with Heme was so effective that other queens (Queen-9, Mufflo-Queen, Mepacrine) also used it (with variable success).
When plasmodial resistance to her increased, the King sent a spy called Viru Tamil (Verapamil) who penetrated the evil plasmodial defenses and allowed Chloe to do her job. Later in the war, a mafia couple (Sulfa-Pyri) took su-pyri to do the job.

She was useful in other Wars too:
1. Killed E. histolytica and Giardia
2. The Great War of RA (Rheumatoid Arthritis)
3. DLE
4. Lepra reactions
5. She also gave symptomatic relief to the King after he got Infectious Mononucleosis from kissing a teenage chambermaid.

Chloe the queen had the adverse effects of a typical woman:
• got under your SKIN (high affinity for melanin) and gave you an itch.
• got deep into the core of your being (high affinity for nuclear chromatin)
• aur aankhon mein bas gayi ( retinal accumulation). Love is Blind.
She gave the King headache and uneasiness, loss of hearing, blindness, mental disturbances and graying of hair. (damn typical woman!)
She did get pregnant though, and gave birth to a normal heir (no teratogenicity).
When the King drank himself to liver damage, she caused him to have seizures.
Being named after Chloro (Latin for green) she was a jealous queen, and the King could not be seen in the company of Mufflo-Queen, Amiodarone and other girls who could stop your heart from fluttering (antiarrhythmics).
She completely rid the kingdom of Falciparum (except some resistant forms), but vivax and ovale kept coming back. If the King went to an endemic area, he had her by his side for a week before and 10 weeks after.

Amodia-Queen (amodiaquine)
She was the African twin of Chloe; ditto on all counts but only called upon in time of war. Once the King took her on an endemic area junket, she almost killed him from toxic hepatitis and agranulocytosis. Known to be less toxic than Chloe, though – caused less of an itch.

Mufflo-Queen (mefloquine)
Mufflo came along to help Chloe get the falciparums that got away. She was very effective, fighting fast (though not as fast as Chloe) and long, but couldn’t kill vivax babies. She was more toxic than Chloe. She was called Mufflo because she muffled and shuffled about (disturbed sense of balance, ataxia, errors in operating machinery), yes indeed, she was quite the Klutz of the palace (strange dreams, anxiety, hallucinations). She tends to get lost in the bile circulation. Safe in pregnancy, but the first trimester is always a time to avoid her. She was also quite the heart stopper and a bitter kisser, like Queen-9, and was only allowed to come out in very resistant attacks (kinda like Kumbhkarna, only female, and prettier). Allowed to go on trips ( a week before and 3 weeks after) to endemic areas but you gotta bring her back and not leave her there for the locals.

Mepacrine
He was the palace eunuch, tried to act like Chloe, but was quite ineffective, very toxic, caused the King to vomit and go mad (psychosis). Was banned and thrown out of the Kingdom. Keeps cryin’ all the time – hence called Mepa-crine.

Queen-9 (Quinine)
Holy mo’fo’ big bad mamma. Queen-9 was like Chloe in the War, killing vivax babies and bloody schizos, but slightly slower to act (and shorter) and very very toxic. “Very bitter kisser,” said the King, “makes my stomach turn she does, the irritating bitch. Makes me deaf and blind, stimulates then depresses my brain. Sometimes I swear I can hear a ringing in my ears, did so the first time I met her – she said they were wedding bells! She is damn pretty though, quite the heart-stopper, and caused nausea, hypoglycemia, heavy breathing, fever, weakness in the legs and collapse in many of her suitors. Some even died. She aborted her babies, and killed my sperm, the bitch. She is a relief in varicose veins and when I get leg cramps at night though, and then she’s the typical wife. I reserve her for the times when falciparum attacks the palace (brain). She’s an effective killer when she teams up with the mafia Supyri, and the small time killers tetra and doxy.
In this scenario she is sometimes supported by Mufflo’s team with Arti-Sunita the Chinese Queen.

Progu-Anil Cyclewala (proguanil)
Progu-Anil got on his cycle (cycloguanil) and went to kill the bloody schizos too. This he accomplished by inhibiting DHFRase, a strategy also employed by the mafia couple Sulfa-Pyri. He was kinda slow like Queen-9, but fought longer. His major achievement was getting into the enemy base camp (got his inspiration from Prima-Queen!) and killing the sleeping falciparums and some vivaxes too. He didn’t kill any babies but didn’t let them grow up. He was much less toxic than the queens - caused the King some tummy upset, and almost caused him some loss of hair. He was safe to hang around in pregnant times but mostly went along with Chloe to swampy battlegrounds that didn’t agree with Chloe very much (not just to give her company!)

Prima-Queen (primaquine)
She didn’t kill any bloody schizos, but she killed the babies, and all the sleeping ones in the base camp. They gave her the Prima title then 
Terrible effects in G6PD deficient people. Roots out relapsing malaria.

Bula-Queen
Indian twin sister of prima, safe in G6PD.

Sulfa-Pyri
Pyri (pyrimethamine) was the female Sulfa-Pyri mafia team. She could kill the enemy by inhibiting DHFRase directly (without getting on her cycle). Also didn’t let the babies grow up, like Anil. Sulfadoxine was her mate, he blocked the enemy a step ahead of Pyri. Together, these slow to act, but durable fighters exhausted the vivaxes in a strategy similar to the Septran Gang (trimethoprim-sulfamethoxazole).

PABA ---X-----> Folate ----X---->THFA
Sulfa Pyri/Trim

This gang took the su-pyri to kill the enemy when Chloe was ineffective. They took along Tetra and Doxy in their gang.

Tetra and Doxy
Small time killers. Slow, short acting, assist the Sulfa-Pyri gang to kill bloody schizos, and some falci sleepers.

The Chinese Queens
Very fast acting (like the Chinese playing ping-pong or like Jackie Chan) and short acting. Arti-Sunita (Artesunate) and Arti-Mathur (Artemether) killed the enemy babies. (These names are not real, guys). Used only for acute attacks of MDR falci. These beautiful ladies are heart stoppers too (QT prolonged, first degree A-V block), but they are kept secure in the palace. Ar-teeth-er (Arteether) (yes she’s got the typical Chinese teeth!) only for institutional use in cerebral malaria.

Halofantrine is a last resort (like a CIA agent used for assassination) and acts like Mufflo-Queen, also cross-reacts with her. May cause VT. Toxic fellow.

Atovaquone is a new warrior that teams up with Progu-Anil to kill bloody schizos. Also fights P. carinii and Toxoplasma gondii (Pyri was in the latter fight too)

Disclaimer: My apologies for all the sexist, racist remarks in this story. It is fictional like Star Wars, but more palpable. No offense is meant to female humans, schizophrenics, eunuchs, Chinese, Parsis, Tamilians, Africans, Klutzes, womanizers, and the characters are not intended to look like real people, only fairy tale chumps.


Note: Great Article! Excellent memory booster. Highly recommended by RxPG. Originally posted in Offbeat forum at http://www.rxpgonline.com/postt12041.html



4 (Excellent) 3(Good) 2(Good) 1(Bad)   


Recommended Books for Pharmacology
 Books to read for Pharmacology by RxPG

Related Pharmacology articles
 Revisable Quick List of New Drugs for PG Entrance Exams
 Oseltamivir (Tamiflu) - First Oral Influenza Neuraminidase Inhibitor
 Trastuzumab (Herceptin) - New Anti-Cancer Drug
 A Quick Contra-Indications list to common drugs
 A Funny look at Antimalarial Drugs
 Drugs causing pemphigus like eruptions
 Ionisation of a drug
 Bioavailability of a drug
 Online Mock Test 148 (PGI Pattern)
 Online Mock Test 147 (PGI Pattern)
 Ezetimibe - A New Class of Lipid-Lowering Drugs
 Pyronaridine - An Antimalarial Blood Schizontocidal Drug
 Pharmacology; Free Online Mock Test 136 (PGI Pattern)
 Pharmacology; Free Online Mock Test 135 (PGI Pattern)
 Pharmacology; Free Online Mock Test 133 (PGI Pattern)
 Pharmacology; Free Online Mock Test 134 (PGI pattern)
 Pharmacology; Free Online Mock Test 132 (PGI Pattern)
 Pharmacology; Free Online Mock Test 131 (PGI Pattern)
 Dezocine - A Narcotic Agonist-Antagonist Analgesic
 Signature Drug Toxicities

Related Pharmacology Discussions

Other articles by willpower
 All the Biostatistics notes you will need for a quick revision
 A Funny look at Antimalarial Drugs

 Pharmacology FAQ
  Browse all FAQs


Write an Article on Pharmacology
You can share your exam experiences, preparation strategies, books you have read or just any information about Pharmacology on RxPG website and we will publish it under your name.

Article Rating
Average Score: 4.73
Votes: 92




Most Read Article
Pharmacology; Free Online Mock Test 136 (PGI Pattern)

Related Links
· Discuss Past Papers
· RxPG Forums
· Pharma Books at Amazon.com






ARTICLE TOOLS

· Pharmacology section
· Articles by willpower
· Add to my pages
· Printer friendly version
· PDF version
· Email article
· Feedback on this article
· Medical tutorials
· Related forum posts
· Related articles
· Related downloads
· Submit article
· Pharmacology alerts
· Pharmacology books
· Pharmacology past papers


Most read story about Pharmacology:
Pharmacology; Free Online Mock Test 136 (PGI Pattern)



Server Status: 107 pages served in last minute. Page generation time: 0.053 seconds

Site Maps: [Books] [News] [Forums] [Reviews] [Mnemonics]

sitemap - top30 - centuries - testimonials


About Us :: Disclaimer :: Contact Us :: Reporting abuse :: Terms of Services :: Privacy Policy

Advertise with RxPG!
Made in India by RxPG Medical Solutions Private Limited

"RxPG" is a Registered Trademark

Chrome Web Store YouTube Twitter LinkedIn Wikipedia Facebook