Desvenlafaxine
| Clinical data | |
|---|---|
| Trade names | Pristiq, Desfax, Ellefore, others |
| Other names | O-desmethylvenlafaxine, WY-45233 |
| AHFS/Drugs.com | Monograph |
| MedlinePlus | a608022 |
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| Routes of administration | By mouth |
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| Pharmacokinetic data | |
| Bioavailability | 80% |
| Protein binding | Low (30%) |
| Metabolism | CYP3A4, (CYP2D6 is not involved) |
| Elimination half-life | 11 h |
| Excretion | 45% excreted unchanged in urine |
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| ECHA InfoCard | 100.149.615 |
| Chemical and physical data | |
| Formula | C16H25NO2 |
| Molar mass | 263.381 g·mol−1 |
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Desvenlafaxine, sold under the brand name Pristiq among others, is a medication used to treat depression.[1] It is recommended that the need for further treatment be occasionally reassessed.[1] It may be less effective than its parent compound venlafaxine,[2] although some studies have found comparable efficacy.[3] It is an antidepressant of the serotonin-norepinephrine reuptake inhibitor (SNRI) class and is taken by mouth.[1]
Common side effects include dizziness, trouble sleeping, increased sweating, constipation, sleepiness, anxiety, and sexual problems.[1] Serious side effects may include suicide in those under the age of 25, serotonin syndrome, bleeding, mania, and high blood pressure.[1] A withdrawal syndrome may occur if the dose is rapidly decreased.[1] It is unclear if use during pregnancy or breastfeeding is safe.[4]
Desvenlafaxine was approved for medical use in the United States in 2008.[1] In Europe its application for use was denied in 2009.[2] In 2017, it was the 235th most commonly prescribed medication in the United States, with more than two million prescriptions.[5][6]
Medical uses[edit]
Desvenlafaxine is primarily used as a treatment for major depressive disorder.[7] Use has only been studied up to 8 weeks.[1] It may be less effective than venlafaxine,[2] although some studies have found comparable efficacy with a lower rate of nausea.[3]
Doses of 50–400 mg/day appear effective for major depressive disorder, although no additional benefit was demonstrated at doses greater than 50 mg/day, and adverse events and discontinuations were more frequent at higher doses.[8]
Desvenlafaxine improves the HAM-D17 score[9] and measures of well being such as the Sheehan Disability Scale (SDS) and 5-item World Health Organization Well-Being Index (WHO-5).[10]
Adverse effects[edit]
Frequency of adverse effects:[7][11][12]
Very common adverse effects include:
- Nausea
- Headache
- Dizziness
- Dry mouth
- Hyperhidrosis
- Diarrhea
- Insomnia
- Constipation
- Fatigue
Common adverse effects include:
- Tremor
- Blurred vision
- Mydriasis
- Decreased appetite
- Sexual dysfunction
- Insomnia
- Anxiety
- Elevated cholesterol and triglycerides
- Proteinuria
- Vertigo
- Feeling jittery
- Asthenia
- Nervousness
- Hot flush
- Irritability
- Abnormal dreams
- Urinary hesitation
- Yawning
- Rash
Uncommon adverse effects include:
- Hypersensitivity
- Syncope
- Depersonalization
- Hypomania
- Withdrawal syndrome
- Urinary retention
- Epistaxis (nose bleed)
- Alopecia (hair loss)
- Orthostatic hypotension
- Peripheral coldness
Rare adverse effects include:
- Hyponatraemia (low blood sodium)
- Seizures
- Extrapyramidal side effects
- Hallucinations
- Angioedema
- Photosensitivity reaction
- Stevens–Johnson syndrome
Common however unknown intensity of adverse effects include:
- Abnormal bleeding (gastrointestinal bleeds)
- Narrow-angle glaucoma
- Mania
- Interstitial lung disease
- Eosinophilic pneumonia
- Hypertension
- Suicidal behavior and thoughts
- Serotonin syndrome
Pharmacology[edit]
Desvenlafaxine is a synthetic form of the isolated major active metabolite of venlafaxine, and is categorized as a serotonin-norepinephrine reuptake inhibitor (SNRI). When most normal metabolizers take venlafaxine, approximately 70% of the dose is metabolized into desvenlafaxine, so the effects of the two drugs are expected to be very similar.[13] It works by blocking the "reuptake" transporters for key neurotransmitters affecting mood, thereby leaving more active neurotransmitters in the synapse. The neurotransmitters affected are serotonin (5-hydroxytryptamine) and norepinephrine (noradrenaline). It is approximately 10 times more potent at inhibiting serotonin uptake than norepinephrine uptake.[14]
| Transporter | Ki[nM][14][15] | IC50 [nM][14] |
|---|---|---|
| SERT | 40.2 | 47.3 |
| NET | 558.4 | 531.3 |
Approval status[edit]
United States[edit]
Wyeth announced on 23 January 2007 that it received an approvable letter from the Food and Drug Administration for desvenlafaxine. Final approval to sell the drug was contingent on a number of things, including:
- A satisfactory FDA inspection of Wyeth's Guayama, Puerto Rico facility, where the drug is to be manufactured;
- Several postmarketing surveillance commitments, and follow-up studies on low-dose use, relapse, and use in children;
- Clarity by Wyeth around the company's product education plan for physicians and patients;
- Approval of desvenlafaxine's proprietary name, Pristiq.[16]
The FDA approved the drug for antidepressant use in February 2008, and was to be available in US pharmacies in May 2008.[17]
In March 2017, the generic form of the drug was made available in the US.
Canada[edit]
On February 4, 2009, Health Canada approved use of desvenlafaxine for treatment of depression.[18][19]
European Union[edit]
In 2009, an application to market desvenlafaxine for major depressive disorder in the European Union was declined.[2] In 2012, Pfizer received authorization in Spain to market desvenlafaxine for the disorder but it is not being sold.[20][21]
Australia[edit]
Desvenlafaxine is classified as a schedule 4 (prescription only) drug in Australia. It was listed on the PBS (Pharmaceutical Benefits Scheme) in 2008 for the treatment of major depressive disorders.
See also[edit]
References[edit]
- ^ a b c d e f g h "Desvenlafaxine Succinate Monograph for Professionals". Drugs.com. American Society of Health-System Pharmacists. Retrieved 18 March 2019.
- ^ a b c d "Withdrawal Assessment Report for Dessvenlafaxime" (PDF). EMA. p. 3. Retrieved 22 March 2019.
- ^ a b Coleman, Kristina A.; Xavier, Vanessa Y.; Palmer, Trish L.; Meaney, James V.; Radalj, Libby M.; Canny, Louise M. (2012). "An indirect comparison of the efficacy and safety of desvenlafaxine and venlafaxine using placebo as the common comparator". CNS Spectrums. 17 (3): 131–141. doi:10.1017/S1092852912000648. ISSN 2165-6509. PMID 22883424. Retrieved 2019-11-06.
- ^ "Desvenlafaxine Pregnancy and Breastfeeding Warnings". Drugs.com. Retrieved 19 March 2019.
- ^ "The Top 300 of 2020". ClinCalc. Retrieved 11 April 2020.
- ^ "Desvenlafaxine - Drug Usage Statistics". ClinCalc. Retrieved 11 April 2020.
- ^ a b "PRODUCT INFORMATION – PRISTIQ desvenlafaxine (as succinate)" (PDF). TGA eBusiness Services. Pfizer Australia Pty Ltd. 10 December 2012. Retrieved 8 November 2013.
- ^ Perry, Richard; Cassagnol, Manouchkathe (2009). "Desvenlafaxine: a new serotonin-norepinephrine reuptake inhibitor for the treatment of adults with major depressive disorder". Clinical Therapeutics. 31 Pt 1: 1374–1404. doi:10.1016/j.clinthera.2009.07.012. ISSN 1879-114X. PMID 19698900.
- ^ Thase ME, Kornstein SG, Germain JM, Jiang Q, Guico-Pabia C, Ninan PT (March 2009). "An integrated analysis of the efficacy of desvenlafaxine compared with placebo in patients with major depressive disorder". CNS Spectr. 14 (3): 144–54. doi:10.1017/s1092852900020125. PMID 19407711.
- ^ Soares CN, Kornstein SG, Thase ME, Jiang Q, Guico-Pabia CJ (October 2009). "Assessing the efficacy of desvenlafaxine for improving functioning and well-being outcome measures in patients with major depressive disorder: a pooled analysis of 9 double-blind, placebo-controlled, 8-week clinical trials". J Clin Psychiatry. 70 (10): 1365–71. doi:10.4088/JCP.09m05133blu. PMID 19906341.
- ^ "DESVENLAFAXINE tablet, extended release [Ranbaxy Pharmaceuticals Inc.]". DailyMed. Ranbaxy Pharmaceuticals Inc. March 2013. Retrieved 9 November 2013.
- ^ "desvenlafaxine (Rx) - Pristiq, Khedezla". Medscape Reference. WebMD. Retrieved 9 November 2013.
- ^ Lemke, Thomas L.; Williams, David A. (2012). Foye's Principles of Medicinal Chemistry. Lippincott Williams & Wilkins. p. 609. ISBN 978-1-60913-345-0.
- ^ a b c Deecher, DC; Beyer, CE; Johnston, G; Bray, J; Shah, S; Abou-Gharbia, M; Andree, TH (August 2006). "Desvenlafaxine succinate: A new serotonin and norepinephrine reuptake inhibitor" (PDF). The Journal of Pharmacology and Experimental Therapeutics. 318 (2): 657–665. doi:10.1124/jpet.106.103382. PMID 16675639. S2CID 15063064.
- ^ Roth, BL; Driscol, J (Dec 2012). "PDSP Ki Database". Psychoactive Drug Screening Program (PDSP). University of North Carolina at Chapel Hill and the United States National Institute of Mental Health. Retrieved 7 July 2018.
- ^ "Wyeth Receives Approvable Letter From FDA For Pristiq (Desvenlafaxine Succinate) For The Treatment Of Major Depressive Disorder" (Press release). 2007-01-23. Retrieved 2007-04-04.
- ^ "FDA Approves Pristiq" (Press release). Wyeth. 2008-02-29. Archived from the original on 2008-03-05. Retrieved 2008-02-29.
- ^ Health Canada Notice of Compliance - Pristiq[permanent dead link]. February 4, 2009, retrieved on March 9, 2009.
- ^ "Summary Basis of Decision (SBD) PrPristiq". Health Canada. 2009-05-29. Archived from the original on 2016-10-18. Retrieved 2016-12-30.
- ^ "Pristiq 100 mg Comprimidos de Liberacion Prolongada". AEMPS Medicines Online Information Center - CIMA. Retrieved 2016-12-30.
- ^ "Pristiq 50 mg Comprimidos de Liberacion Prolongada". AEMPS Medicines Online Information Center - CIMA. Retrieved 2016-12-30.
External links[edit]
- "Desvenlafaxine". Drug Information Portal. U.S. National Library of Medicine.