Active Ingredient(s): Desvenlafaxine Succinate
FDA Approved: * February 29, 2008
Pharm Company: * WYETH PHARMS INC
Category: Antidepressant

* This drug may consist of multiple approval dates, manufacturers, or distributors. If applicable, they would be listed below under "NDC Database Records".

Pristiq Overview

Desvenlafaxine (brand name: Pristiq, Desfax, Ellefore), also known as O-desmethylvenlafaxine, is an antidepressant of the serotonin-norepinephrine reuptake inhibitor (SNRI) class developed and marketed by Wyeth (now part of Pfizer). Desvenlafaxine is a synthetic form of the major active metabolite of venlafaxine (sold under the brand names Effexor and Efexor). It is being targeted as the first non-hormonal based treatment for menopause.[1] Contents 1 Medical uses 2 Adverse effects 3 Ph...

Read more Pristiq Details
Details May Include Instructions, Side Effects, Interactions, Etc. Drug monograph is from Wikipedia. All text is available under the terms of the GFDL (GNU Free Documentation License). Source:

Recent Pristiq Forums: RSS Feed

Switching from pristiq to generic pristiq
105 Replies RSS Share
I was switched from Pristiq to generic Pristiq which if I understand right, is really Effexor. Is there a possibility this could be causing my severe fatigue? Has this happened to anyone else out there? ## My Insurance switched me to the generic (not my choice) about 3-4 weeks ago. Depression has been creeping in and I'm pretty concerned. Yesterday/last night was bad. Today was OK but my energy is not what it should be and my thinking/mood is not where it should be. Hoping to switch back but I don't know what is happening with the insurance...there is a $1000 penalty to go back to name brand!! ## Insurance is disgusting!! I actually feel ok depression wise and the fatigue turned out to be something else. I hope you stay stable ## Thanks. I'm glad your medication isn't th...
Updated 3 minutes ago.
Weaning off pristiq
432 Replies RSS Share
I just wanted to tell all of you trying to get off pristiq, its possible. I was on pristiq for severe panic attacks for 6 months. It saved my life. It gave me a chance to slow down my career, gave me a huge wakeup call. This drug put a cloud over my brain. I was not my happy, fun loving self. I was like a step ford wife. You cant wean off this pill. I was on 50mg. I did every other day for a month. Every third day for two weeks then cold turkey. It really was not so bad. I layer on my couch for three days, cried a bit and watched movies. I'm happily on all holistic medications, no longer a slave to pristiq. If I can beat anxiety, anyone can. My biggest advice.. Exercise. Next, surround yourself with positive people. Three, talk out your problems. Good luck. ## Fantastic advice and v...
Updated 2 days ago.
What is Desvenlaflax
14 Replies RSS Share
I've been taking Pristiq for a long time, understanding there was no generic. I've even spoken to my Dr who prescribed it about a generic not having been released. Today I changed pharmacies, having provided them with my last bottle of Pristiq for all the info. I was given Desvenlaflax, showing it was generic for Pristiq. I'm confused. I'd like to know if this is actually the generic. I'm familiar with Desvenlafaxine but never heard of what I've now been given. Also I know some generics are not as effective as the brand name. If you have any information concerning the efficacy, please provide. ## That is Desvenlafaxine, they just abbreviated it on this refill. The only way to see how it will work for you is by trying it to see. The FDA lists the typical side effe...
Updated 6 days ago.
135 Replies RSS Share
atrial fibrillation ## Pristiq, which contains the active ingredient Desvenlafaxine, is an antidepressant. Some of the most common side effects include: nausea, drowsiness, sexual dysfunction and constipation. ## For 18 years I have been taking Prozac. Each time I have attempted to change, under the care of a physician, I've touched the bottom of depression again. During the last several years my dosage has been upped to 40 mg in the AM and 40 in the PM. I've suffered anxiety, expecially upon awakening in the morning. In the last 10 years I've been divorced from a man with passive-aggressive tendancies. I go to a well reputed psychologist,exercise and eat well. I regularly meditate and do daily journaling,etc. I'm now married to a good person. My psychologist, chiropract...
Updated 13 days ago.
Tingling And Numbness In My Hands And Feet
2 Replies RSS Share
I have tingling and numbness in my hands and my feet muscles hurt. I am on Pristiq, but it has only been a week. Before that, i was on paxil for concentration and it worked, however now this has come about and i take vicodin for pain, which does help somewhat. ## Pristiq contains the active ingredient Desvenlafaxine, which is an SNRI class antidepressant, these have also been shown to help some people with certain forms of nerve pain, however, it will take about 4 to 6 weeks to reach its full effectiveness in your body. Side effects may include: nausea, drowsiness, weight gain and dry mouth. Learn more: Vicodin contains the active ingredients Hydrocodone and Acetaminophen, it is a narcotic pain reliever. Side effects may include: nausea, dizziness, constipation and dry mouth. Learn mo...
Updated 14 days ago.
Pristiq And Zoloft
3 Replies RSS Share
can pristiq and zoloft be taken together? ## Since they both have effects on Serotonin levels in the brain, using them together does increase the risk of someone developing Serotonin Syndrome, which can be very dangerous. Learn more Pristiq details here. Learn more Zoloft details here. So, if they are taken together, then the dosage must be taken under careful consideration by their doctor and they should be monitored closely to watch for any danger signs. Are you on both of these medications? ## I was in a severely bad way, now, mid-30's: Depression, GAD, and ADD/ADHD. Suffered my whole life from symptoms of ALL, obv, only slowly up til my 30s finally getting what I HOPE/ THINK are "all" the proper diagnoses. Now, I, TOO, WANT TO KNOW IF THERE COULD BE BENEFITS TO TAKING PR...
Updated 1 month ago.
Pristiq taken in morning sideeffect nausea vagueness sleep
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Came off 50ml Pristiq 2 months ago after being on it 4yrs wanted to be free of the drug as my divorce was over did half a tablet every other day for a month then I quit altogether only to have massive withdrawals resulting in massive episodes of anxiety paranoia loneliness & had no choice but to go back on it 3 days ago but experiencing shocking side effects especially in the morning nausea feeling vagueness brain fog feel like I can’t converse in social or work situations plus I go to sleep ok but wake really early How long will this last? each days hell
Updated 1 month ago.
weight gain
2 Replies RSS Share
I have had an insatiable hunger. I have gained weight and have had a lot of gas, and bloating. Went from Effexor XR to Pristiq, not sure if I made the right choice. Any one else had these problems? ## I cannot stop eating. Thought it was PMS but still waiting for my period, bloated and feel like I'm pregnant. I work out 4dper week at the gym; cardio and weight training, feel like it is a waste for time. ## Pristiq is more commonly known to cause loss of appetite, and weight loss, according to FDA reports, but we are all different, so there is a chance it has caused your issues, though it happens very rarely. The other typical side effects as list as possibly including nausea, dizziness, dry mouth, and mood swings. Mary, how much have you gained? Are you on any other medications? Wha...
Updated 1 month ago.
abnormal bleeding?
1 Reply RSS Share
have been on pristiq for just over 1 month and have had my menstrual period for over 14 days, now. Dr. doesn't think it's related. strange coincidental hormone imbalance? ## It has been known to cause an irregular menstrual cycle, as a side effect, according to FDA reports. You may also experience nausea, dizziness, and headache. It should regulate itself, after a few months, once your body gets used to the medication, but if it doesn't, you should inform your doctor, as it might not be the right medication for you. Is there anything else I can help with?
Updated 1 month ago.
Pristiq side effects
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I have been on Pristiq 50mg for four weeks. I feel like it is working for my anxiety/depression. The side effects I have been experiencing are headaches (starting to improve) insomnia at night-time and feeling confused/having trouble thinking clearly/concentrating. This is the side effect I find most bothersome. Will these side effects ease up in time?
Updated 2 months ago.

Possible Dosages for this and Related Drugs:

Desvenlafaxine Succinate
  • Tablet: 100mg, 50mg
  • Tablet, Extended Release: 100mg, 25mg, 50 Mg. And 100 Mg., 50mg
Note: Above list includes dosages for all drugs with the same combination of active ingredients.

NDC Database Records for Pristiq: (6 results)

Sorted by National Drug Code
  • 0008-1211 24 Hr Pristiq 50 mg Extended Release Tablet by Wyeth Pharmaceuticals Inc., a Subsidiary of Pfizer Inc.
  • 0008-1222 24 Hr Pristiq 100 mg Extended Release Tablet by Wyeth Pharmaceuticals Inc., a Subsidiary of Pfizer Inc.
  • 35356-491 24 Hr Pristiq 50 mg Extended Release Tablet by Lake Erie Medical & Surgical Supply Dba Quality Care Products LLC
  • 35356-567 24 Hr Pristiq 100 mg Extended Release Tablet by Lake Erie Medical Dba Quality Care Products LLC
  • 54868-2932 24 Hr Pristiq 50 mg Extended Release Tablet by Physicians Total Care, Inc.
  • 55154-4230 24 Hr Pristiq 50 mg Extended Release Tablet by Cardinal Health

Other drugs which contain Desvenlafaxine Succinate or a similar ingredient: (3 results)

Related Pristiq Topics:

pristiq and weight gain
I started pristiq approx 5 weeks ago and altho my doctor assured me that it was a weight neutral drug I have easily gain... 74 replies
This is NOT a good medicine. I felt more depressed on it and had several side effects, nausea, lack of appetite, dizzine... 44 replies
pristiq for depression and anxiety did not work
My Son went to the Dr. for anxiety and depression, pristiq created more problems for him, panic attacks, insomnia, loss ... 13 replies
Pristiq an Libido- Advice Needed!
I have been taking Pristiq for about 3 years now due Anxiety attacks. After taking the drug for afew days I had the wors... 8 replies
Pristiq Night Sweats
Hi all, I have been on Pristiq for 5+ years. Soon after I began, I started dealing with night sweats. Not just mild swea... 6 replies
Pristiq tapering experience
I was on Pristiq for nearly four years to help stabilize my mood (50mg). The drug was fantastic in achieving the result ... 5 replies
pristiq is it a narcotic
is pristiq a narcotic I NEED TO KNOW ## Hello, Joe! How are you? No, Pristiq contains the active ingredient Desvenlafaxi... 5 replies
pristiq withdrawl
Hi all, I was on 150 of pristiq and have been tapering off for two months. Last week I went from 50 to 25 for about 4 da... 5 replies
Pristiq Withdrawls
I have been on Pristiq for about 4 years and was on levoxyl for a few years prior. I had started taking Sarafem 925mg) a... 4 replies
Pristiq and hot flushes/flashes
I have been on this for 5 days. The last 3 days I have been having hot flushes and they have been getting more frequent.... 4 replies

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