The brand name for desvenlafaxine ER is Pristiq [1].
What is Pristiq used for?
Pristiq is prescribed for the treatment of major depressive disorder (MDD) in adults [1].
How does desvenlafaxine work?
Desvenlafaxine is a selective serotonin and norepinephrine reuptake inhibitor (SSNRI) [2]. It works by increasing the levels of serotonin and norepinephrine in the brain, which are neurotransmitters that play a role in mood regulation [2].
When did Pristiq's patent expire?
The original patent for Pristiq, US Patent No. 7,470,693, expired on January 16, 2023 [3].
Are there generic versions of Pristiq available?
Following the expiry of the primary patent, generic versions of desvenlafaxine ER have become available [4].
Who makes Pristiq?
Pristiq is manufactured by a subsidiary of Pfizer [1].
What are the common side effects of Pristiq?
Common side effects associated with Pristiq include nausea, dry mouth, dizziness, insomnia, somnolence, and increased sweating [1].
What should patients know about switching to generic desvenlafaxine?
Patients considering switching from brand-name Pristiq to a generic desvenlafaxine ER should discuss this with their healthcare provider. While generic medications are designed to be bioequivalent to their brand-name counterparts, individual responses can vary [5].
What are other antidepressants like Pristiq?
Other antidepressants in the SSNRI class include venlafaxine (Effexor XR) and duloxetine (Cymbalta) [2]. These medications also work by affecting serotonin and norepinephrine levels in the brain but may have different side effect profiles and indications.
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Sources:
[1] Pristiq official website
[2] National Alliance on Mental Illness (NAMI)
[3] DrugPatentWatch.com
[4] U.S. Food and Drug Administration (FDA) Orange Book
[5] U.S. Pharmacopeia (USP)