Definition of Multidrug-resistant tuberculosis (MDR-TB) and Extensively drug-resistant tuberculosis (XDR-TB)

Multidrug-resistant tuberculosis (MDR-TB)
Disease causing M. tuberculosis that is resistant to both isoniazid and rifampin

Extensively drug-resistant tuberculosis (XDR-TB)
MDR-TB + additional resistance to any fluoroquinolone + at least one of the second-line injectable agents

From the author: Why Classify Rx ?

“Building an app that I would personally use if I had to prepare for pharmacology.”

Classify Rx for pharmacology was built on the above principle.

Pharmacology is one of the important subjects in medschool. You need to ace it to have an excellent grasp on therapeutics.

But preparing for pharmacology is excruciating for most of us. The subject is vast and volatile too.
In my undergrad days, I always wanted to have a quick revision app for pharmacology. But that period was only the beginning of smartphone era. Even if I could offer, there wasn’t any app like that.

Today, I have built an app that would retrospectively address my concern. And is helping students all over the world to simplify their pharmacology learning experience.
Wishing all of our app users a very happy learning experience with pharmacology.

P.S: I still refer my app at many times.

Dr. Nishith R S
MBBS, MD (Pharmacology)

Pharmacology learning basic tips

• Pharmacology is a very volatile subject. So, the first rule is revise, revise and revise. No chance that you can grasp it in a single reading. 
• Understand concepts thoroughly wherever it is present (Autonomic nervous system is an example); you need to mug up wherever it is absent.
• While trying to remember classification, try to associate an important property of that drug. Like while remembering all H2 blockers, remember cimetidine has maximum CYP inhibition. 
• Mnemonics will help only if you can remember them. I would suggest mnemonics to something like adverse effects of PHENYTOIN. But not for remembering atypical antipsychotics per se. 
• Clinical correlation: if you are in clinical postings and happen to see a drug in bedside or someone prescribing a drug you don't know. Come back and read about it. Correlate and store it as an associative memory. (Yeah that's the best form of memory) 
• Make a notes of any kind of your comfort. But make it and use it for revision.

And last but not the least, I created an app called classify rx for addressing the difficulty in preparing for pharmacology.
Classify rx is a crisp pharmacology review app for all healthcare professionals preparing for pharmacology exams.