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Patient Education: Desvenlafaxine (Pristiq)

Written by Dr. Rahul Bansal | Oct 14, 2024 6:20:14 PM

Desvenlafaxine is a medication prescribed by your healthcare provider, selected based on current evidence-based guidelines to best address specific mental health conditions. While effective, it's important to understand that all medications come with potential side effects. As a patient or caregiver, being informed about these risks and benefits is crucial. Equally essential is knowing how to monitor for side effects, and understanding the strategies to reduce their occurrence or manage them effectively. This guide aims to empower you with this knowledge, ensuring a well-informed approach to your or your child's treatment

What is Desvenlafaxine?

Desvenlafaxine belongs to a group of medicines known as Serotonin Norepinephrine Reuptake Inhibitors (SNRIs).  Desvenlafaxine works by increasing the levels of serotonin and norepinephrine in the brain.

 

When is Desvenlafaxine prescribed to Children & Adolescents?

Your doctor may prescribe Desvenlafaxine for

  • Depression
  • Anxiety (Generalized Anxiety Disorder & Social Anxiety Disorder)
  • Panic Disorder
  • Post-traumatic Stress Disorder (PTSD)
  • Post Menstrual Dysphoric Disorder (PMDD)

What is the Dose of  Desvenlafaxine?

  • The dose typically ranges from 25 to 100 mg.
  • Started at a low dose, gradually increasing to effectiveness.
  • Capsules should be swallowed whole and not chewed or crushed.

 

Medication Guidelines: What you need to know

  • Take your medication consistently every day as directed by your healthcare provider, rather than using it only when you feel you need it.

  • While some patients may notice improvement within the first two weeks of starting treatment, it may take up to eight weeks to experience the medication's full benefits.

  • Abruptly stopping SSRIs can lead to a discontinuation syndrome, which may cause symptoms like dizziness, chills, lightheadedness, fatigue, headache, muscle aches, nausea, diarrhea, tremors, shock-like sensations, and tingling.

  • After the first episode of depression is resolved, staying on the effective dosage for at least one year is needed to minimize the risk of symptom recurrence. Following this period, your healthcare provider will guide you through a gradual tapering-off process and stop the medication entirely. This approach ensures a smoother transition and reduces the likelihood of relapse. For second and subsequent episodes of depression and for other mental health disorders, treatment may need to be indefinite.

  • Combining Desvenlafaxine with certain medications can lead to a dangerous condition called Serotonin Syndrome, caused by excessive serotonin levels in the body. Symptoms include anxiety, agitation, confusion, sweating, rapid heartbeat, high blood pressure, fever, stomach problems, tremors, muscle stiffness, spasms, and heightened reflexes. Over-the-counter agents and supplements such as Dextromethorphan (DXM), St. John's Wort, certain cough and cold medications, over-the-counter migraine medications, 5-HTP, and L-tryptophan can also interact with Desvenlafaxine to induce serotonin syndrome. It's vital to consult your primary care provider or psychiatrist before starting any new prescription or over-the-counter medication.

What can be the possible

side-effects from the medication?

Serious but Rare Side-Effects

 

 

 

  • Switching into Mania (An extreme increase in activity and talking): Antidepressants, when used independently, can induce manic episodes in individuals with bipolar disorder. Furthermore, some instances of bipolar disorder manifest initially as major depressive episodes. It's crucial to communicate your child's psychiatric history and any family history of bipolar disorder to your provider. This information ensures that the provider is vigilant about the potential risk of this side effect.

    • Low Sodium: Desvenlafaxine can occasionally lead to low sodium levels, though the likelihood is minimal in children, adolescents, and young adults. However, this risk may rise if your child is taking medications like diuretics or has a history of low sodium levels. Updating all medical providers about your child’s medical history and medication list is crucial to prevent potential negative interactions. Fortunately, hyponatremia resulting from Desvenlafaxine use is reversible upon discontinuation of therapy.

    • Increased Bruising & Bleeding Risk: Fluoxetine may slightly elevate the risk of bleeding, though severe clinical incidents are uncommon. However, this risk increases when fluoxetine is taken alongside medications such as antiplatelet agents, anticoagulants, and NSAIDs, all of which also carry bleeding risks. To mitigate potential interactions between medications, ensure that all healthcare providers are aware of your medication list. This promotes your safety and well-being.

 


To learn more about this medication please visit MedlinePlus, an official US government website, part of the National Library of Medicine and managed by the National Institute of Health by clicking HERE