Category Archives: Antidepressants

Video: Side effects of SSRIs

The following video is a short overview on the pharmacological basis of SSRIs side effects. Outline: Facts about SSRIs adverse effects. Gastrointestinal adverse effects. 5-HT3 and 5-HT4 receptors in the GI tract. 5-HT3 receptors in the brainstem and hypothalamus. CNS adverse effects. 5-HT2A receptor stimulation at the basal ganglia. 5-HT2A and 2C receptors are hypotheticallyContinue Reading

Differences between tricyclic antidepressants and SNRIs mechanism of action

Images, mindmaps and tables integration of both TCAs and SNRIs MOA. Muscarinic, histaminic and alpha 1 receptors blockade determines TCAs Continue Reading

Serotonin (5-HT): receptors, agonists and antagonists

Serotonin (5-HT): receptors, agonists and antagonists

Serotonin receptors characteristics, classification and drugs that influence serotonergic transmission. Pharmacology review.Continue Reading

Aripiprazole (Abilify) not approved for bipolar disorder

According to a press release, the Scottish Medicines Consortium (SMC) did not accept aripiprazole for the treatment of manic episodes in bipolar I disorder and for the prevention of  new manic episodes. According to the SMC, the manufacturer did not present a sufficiently robust economic analysis to gain acceptance. Psychiatrist Daniel Carlat from “The CarlatContinue Reading

Agomelatine (Valdoxan) for major depressive episodes

Agomelatine (Valdoxan, Melitor, Thymanax) is a recently marketed new drug for the treatment of major depression with a novel mechanism of action. It can be included in the class of  “other antidepressants”, or classified as a melatonergic drug. Mechanism of action Agomelatine acts as an agonist on melatonin MT1 and MT2 receptors. Additionally, it blocksContinue Reading

PowerPoints: overview on antidepressants pharmacology

PowerPoint lectures on antidepressants pharmacology. MOA, pharmacokinetics, indications, and side effects of: tryciclics, SSRIs, heterocyclics, MAO inhibitors.Continue Reading

Analysis of antidepressants effectiveness in adolescents: InfoPOEMs podcast

Essential Evidence Plus, formerly InfoPOEMs is a service by John Wiley and Sons that aims to give physicians succinct medical evidence that will impact in their medical practice. In this podcast Dr. Ebell and Dr. Wilkes (National Public Radio) discuss the POEM titled: “Antidepressants only modestly effective for adolescent depression” Listen to the podcast onContinue Reading

NPS: Desvenlafaxine (Pristiq) not superior to venlafaxine for major depressive disorder

The National Prescribing Service Limited (Australia) made an independent evaluation on the role of desvenlafaxine (Pristiq) for the treatment of major depressive disorder. Summary: Desvenlafaxine is the active metabolite of venlafaxine. There is no evidence that desvenlafaxine is more effective, safer or better tolerated than venlafaxine or other antidepressants. Doses above 50 mg/day are unlikelyContinue Reading

MCQs for USMLE review on psychopharmacology: antipsychotics, benzodiazepines, antidepressants and lithium

These pharmacology MCQs from the UMKC School of Medicine have a different degree of difficulty, but are useful to review pharmacology of psychotropics. Psychotropics Item Number: 11667 correct answer: 4 category: Psychotropics 1. The symptoms of tardive dyskinesia will acutely improve with: 1. administration of diphenhydramine 2. administration of amantadine 3. administration of bromocriptine 4.Continue Reading

Antidepressants podcast: comments on the latest ACP clinical guidelines

Essential Evidence Plus, formerly InfoPOEMs is a service by John Wiley and Sons that aims to give physicians succinct medical evidence that will impact in their medical practice. In this podcast Dr. Ebell and Dr. Wilkes (National Public Radio) discuss the POEM that analyzes the ACP guidelines (published in Annals of Internal Medicine) on antidepressants.Continue Reading

Direct-to-consumer advertising (DTCA): the case of the serotonin hypothesis and SSRIs ads

I would like to recommend Pharmamotion readers one of the most popular articles in PLoS Medicine: Serotonin and Depression: A Disconnect between the Advertisements and the Scientific Literature. Jeffrey R. Lacasse, Jonathan Leo The article is a definitely a must read for those interested in direct-to-consumer advertising (DTCA) issues. However,for those who don’t have enoughContinue Reading

Serotonin syndrome

Serotonin syndrome is a predictable clinical feature that involves excess serotonergic agonism of central nervous system (CNS) receptors and peripheral serotonergic receptors. The following PowerPoint was published on Stanford School of Medicine’s Scalpel: Serotoninn syndrome features Download: Serotonin syndrome PPT file MedExcel posted recently a mnemonic to remember the clinical components of serotonin syndrome Causes HARM:Continue Reading

Duloxetine (Cymbalta, Yentreve): a serotonin-norepinephrine reuptake inhibitor for major depression. Australian prescriber review

From Australian Prescriber: Duloxetine Cymbalta (Eli Lilly) 30 mg and 60 mg capsules Approved indication: major depression Australian Medicines Handbook section 18.1.2 Duloxetine is a new antidepressant which selectively inhibits serotonin and noradrenaline reuptake. It also weakly inhibits dopamine uptake. (See details of its mechanism of action)Continue Reading

SSRIs, SNRIs and SSNRIs: clinical guideline by the ACP

The American College of Physicians has issued a Clinical Practice Guideline about the use of Second-Generation Antidepressants in the treatment of Depressive Disorders. The recommendations that arise from it are the following: Recommendation 1: The American College of Physicians recommends that when clinicians choose pharmacologic therapy to treat patients with acute major depression, they selectContinue Reading

Are you a visual learner interested in learning psychopharmacology? Click here to get our videos