A short video on how benzodiazepines, barbiturates, BZ agonists like zolpidem, and how antagonists like flumazenil work. The focus is on the GABA receptor and an explanation of CNS depression. View the rest of my posted videos below:

(1) Pharmacokinetics Core concepts: http://youtu.be/CMRZqdrkCZw
----
DRUG ABSORPTION Videos:
(2) Drug Absorption Overview: http://youtu.be/eya9jR3v7i8
(3) Bioavailability: http://youtu.be/rv2Rpdi7OHM
---------
DRUG DISTRIBUTION Videos:
(4) Drug Distribution Overview: http://youtu.be/DH2WGUd7MBs
(5) Volume of Distribution: http://youtu.be/B63sqUfvFQQ
------------------
DRUG METABOLISM Videos:
(6) First Pass Metabolism: http://youtu.be/5AB8WkCbz4k
(7) Phase I Metabolism: http://youtu.be/GGLddVpVg9M
(8) Phase II Metabolism: http://youtu.be/iIWAUo05GFE
(9) First Order and Zero Order Kinetics: http://youtu.be/XEotDfKhNTw
(10) Drug Half-life: http://youtu.be/eTqPsqnbwoc
(11) First-order elimination rate constant: http://youtu.be/De9999Jj-5Q
------------------------------------------
DRUG ELIMINATION / EXCRETION
(12) Drug Clearance: [not yet posted]
(13) Practice problems: [not yet posted]
(13) Dosage Regimens: [not yet posted]
---------------------------------------------------------------------
Factors That Affect Drug Metabolism:
(14) Enzyme Induction: http://youtu.be/Dtbkc8F_ff0
(15) Competitive Inhibition Overview: http://youtu.be/iNIxMuHuL3w
(16) Competitive Inhibition of Statins: http://youtu.be/Lt1-mjMFniE
(17) Acetaminophen toxicity (Clinical Correlate): [Not yet posted]
(18) Pharmacogenomics Overview: http://youtu.be/3vZxbX5P9TU
(19) Slow Acetylators - Pharmacogenomics: [not yet posted]