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Category: Drug Classes

Lithium’s Mechanism of Action: An Illustrated Review

Lithium’s Mechanism of Action: An Illustrated Review

Author: Flavio Guzman, MD Lithium’s mechanism involves multiple levels of action, from macroscopic neuroprotective effects to intracellular changes. This tutorial discusses: Brain abnormalities found in patients suffering from bipolar disorder How lithium modulates dopamine, glutamate and GABA Intracellular changes associated with lithium use (effects on proteins such as PKC, MARCKS, GSK-3, IPPase and IMPase) Unravelling… Continue Reading

The Psychopharmacology of Fluoxetine: An Illustrated Review for Prescribers

The Psychopharmacology of Fluoxetine: An Illustrated Review for Prescribers

Author: Flavio Guzman, MD Fluoxetine has activating properties that make it a good option for patients with retarded depression or atypical depression. However, we should avoid activation in patients with insomnia and agitation. There is something that makes fluoxetine unique: its long half-life, we will discuss the advantages and disadvantages of this in clinical practice.… Continue Reading

Reviewing Bupropion for Depression: An Update with Dr. Derek Tracy

In this episode we interview Dr. Derek Tracy on the use of bupropion for depression. Dr. Tracy is a Consultant Psychiatrist and the Associate Clinical Director for Crisis, Inpatient, and Rehabilitation services at Oxleas NHS Foundation Trust, London. He is a BRC research fellow and the neuromodulation lead at the Institute of Psychiatry, Psychology, and Neuroscience, King’s… Continue Reading

The Psychopharmacology of Paroxetine: An Illustrated Summary for Prescribers

The Psychopharmacology of Paroxetine: An Illustrated Summary for Prescribers

Author: Flavio Guzman, MD Paroxetine (Paxil, Seroxat, Aropax) is an SSRI approved for major depressive disorder and most anxiety disorders. In clinical practice, many clinicians use it for patients with anxious depression. However, this observation hasn’t been specifically studied in randomized controlled trials. Regarding its side effects profile, important features include higher risk for sexual… Continue Reading

Long-Acting Injectable Antipsychotics: A Practical Guide for Prescribers

Author: Flavio Guzman, MD Competing interests: none This article summarizes the most clinically relevant features of long-acting injectable antipsychotics (LAIs, previously known as depot antipsychotics). We discuss general concepts as well as key prescribing facts of individual agents. The guide also includes two new formulations: aripiprazole lauroxil (Aristada) and 3-month paliperidone palmitate (Invega Trinza). Advantages and disadvantages of long-acting antipsychotics… Continue Reading

Summary of Newly Approved Antipsychotics

By Flavio Guzman, MD Two new second-generation antipsychotics were approved in 2015: brexpiprazole (Rexulti) and cariprazine (Vraylar). Like aripiprazole (Abilify), they are both D2 partial agonists and are associated with risk of akathisia. Aripiprazole, brexpiprazole and cariprazine are FDA-approved for the treatment of schizophrenia. Aripiprazole and cariprazine are approved for the treatment of manic episodes in… Continue Reading

Reviewing Antipsychotic Adverse Effects with Prof. Mark Taylor

Reviewing Antipsychotic Adverse Effects with Prof. Mark Taylor

Professor Mark Taylor is a consultant psychiatrist at the NHS in the UK. He is also Associate Professor at the University of Queensland in Brisbane Australia. He is the coauthor of a paper published in the Journal of Psychopharmacology: “First do no harm.” A systematic review of the prevalence and management of antipsychotic adverse effects”.… Continue Reading

Aripiprazole Lauroxil Extended-Release Injectable (ARISTADA)

Aripiprazole Lauroxil Extended-Release Injectable (ARISTADA)

By Flavio Guzman, MD Highlights of prescribing information To be administered by intramuscular injection in the deltoid (441 mg dose only) or gluteal (441 mg, 662 mg or 882 mg) muscle by a healthcare professional. For patients naïve to aripiprazole, establish tolerability with oral aripiprazole prior to initiating treatment with ARISTADA. ARISTADA can be initiated… Continue Reading

Free Course: “SSRIs: The Essentials”

Fluoxetine

Learn the essentials of SSRIs with our free online course.

One module per week:

  • The Mechanism of Action of SSRIs
  • Fluoxetine
  • Fluvoxamine
  • Paroxetine
  • Sertraline
  • Citalopram and Escitalopram
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