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Pristiq (Desvenlafaxine)

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What is Generic?

What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


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Pristiq is a prescription medication primarily used to treat major depressive disorder (MDD) in adults. It belongs to a class of drugs known as serotonin-norepinephrine reuptake inhibitors (SNRIs), which work by balancing the levels of serotonin and norepinephrine in the brain. By doing so, Pristiq helps to improve mood, feelings of well-being, and overall energy levels, thereby aiding in the relief of depression symptoms.

Before you buy Pristiq or Pristiq generic, it is crucial that you talk to your healthcare provider about its potential side effects and affordability.

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Generally, the initial recommended dosage for this medication is 50 mg, taken once a day, and it can be consumed with or without meals. Depending on how your body reacts to the treatment, your healthcare provider may modify the dosage accordingly. It is essential to ingest the tablet in its entirety, accompanied by a full glass of water. For optimal effectiveness, aim to administer the medication at the same daily time to ensure a stable concentration of the drug in your bloodstream.


Active Ingredient: Desvenlafaxine


Inform your doctor if you are allergic to Desvenlafaxine or any other ingredients in Pristiq.

Disclose your medical history, especially if you have high blood pressure, liver or kidney disease, or a history of seizures.

If you are pregnant, considering pregnancy, or are currently breastfeeding, it's important to consult with your healthcare professional for guidance.

SNRIs, including Pristiq, may increase the risk of suicidal thoughts, especially in young adults and adolescents.


Do not take Pristiq medication if you are taking or have recently taken Monoamine Oxidase Inhibitors (MAOIs). Combining Pristiq with other serotonergic drugs can lead to a potentially life-threatening condition called serotonin syndrome.

Side Effects

Common side effects may include:

  • Nausea
  • Dizziness
  • Dry mouth
  • Loss of appetite
  • Increased sweating
  • Insomnia

Remember, these are not exhaustive lists, and it's important to consult with a healthcare professional for personalized advice and guidance. If you prefer, you may contact the U.S. Food and Drug Administration (FDA) directly. Visit or call 1-800-FDA-1088

Frequently Asked Questions about Pristiq

How long does Pristiq take to work?

It may take several weeks to feel the full benefits of Pristiq. Seek guidance from your medical professional for advice tailored to your individual needs.

Does Pristiq cause weight gain?

Weight changes are a potential side effect. However, not everyone will experience this. Seek guidance from your medical professional for advice tailored to your individual needs.

Is Pristiq an SSRI?

No, Pristiq is an SNRI (Serotonin-Norepinephrine Reuptake Inhibitor), not an SSRI (Selective Serotonin Reuptake Inhibitor).

Is 25 mg of Pristiq effective?

The typical starting dose is 50 mg. A 25 mg dose is generally not recommended but consult your healthcare provider for personalized advice.

Can you die from Pristiq withdrawal?

Withdrawal from Pristiq should be done under medical supervision. Abrupt discontinuation can lead to severe symptoms but is generally not life-threatening.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.