Desvenlafaxine, (Pristiq) like any of the psychotropic meds, has a great number of possible side effects, but a delay in menstrual cycles is NOT listed in the PDR.
If there is no possibility you may be pregnant, the delay in your period is no doubt due to stress relative to the depression.
Since you have only been on desvenalafaxine for one week, I'm assuming your prescribing doctor wants you back for a follow up in a few weeks time.
Effexor and Pristiq are not the dance thing. Sane family. Venlafaxine vs desvenlafaxine. Pristiq had added benefit of norepinehprine uptake inhibitor or something. Weird that everyone is getting prescribed 50mg when the added benefits dont kick in until 100-150mg. Before swapping drug altogether (depending on non mental side effects) try upping dose first maybe.
Pristiq is nothing but an active metabolite of Effexor (venlafaxine being Effexor and desvenlafaxine being Pristiq). Honestly, it should be about as effective as Effexor is. The only reason it was created is because Effexor's patent (if it hasn't already) and soon will be a generic, cheap drug. The pharmaceutical companies always come up with a new drug to push over the old ones whenever this happens because they don't make even a quarter of the money off of the generic drugs.
Desvenlafaxine ( Pristiq ) is a novel form of the isolated major active metabolite of venlafaxine, and is categorized as a serotonin-norepinephrine reuptake inhibitor (SNRI). It works by blocking the transporter "reuptake" proteins for key neurotransmitters affecting mood, thereby leaving more active neurotransmitters in the synapse. The neurotransmitters affected are serotonin (5-hydroxytryptamine) and norepinephrine (noradrenaline).
Effexor and Pristiq are 99% the same drug in terms of active chemical. Pristiq being Desvenlafaxine and Effexor being Venlafaxine. In fact if you look at the molecular chart for the two drugs they even bind the same.
Funny thing is you know why Weith pharm released Pristiq? (a drug much like Effexor) Because the 7 year patent on Effexor was close to an end and Weith didn't want to lose market share. In comes Pristiq (Name brand only for another 7 years)
It's all about the money.
I came off Lexapro 20mg (was not working anymore) and my doctor put me on Pristiq 50mg and xanax. The pristiq is working good but after a couple of months now I am not so sure. I take the Xanax at night because it helps me sleep.
I am a 45 year old male and suffer from GAD and mild deppresion. Should I try something stronger or seek therapy or what? Has anyone else experienced this or on Pristiq? I feel like I am sputtering out here. Any help very much appreciated.
I have just started taking Pristiq after being on Effexor-XR for a long time and I'm wondering if anyone out there has had any good experiences with Pristiq, and if so could they please share them?
ve recently been experiencing panic attacks. My Dr added Pristiq to my treatment. As I understand, Pristiq is a more purified form of Effexor. Since starting on the Pristiq two weeks ago, I have felt like pure poo poo. I went to a GP today, thinking I may have a virus or something. She said she would NEVER prescribe both Effexor and Pristiq together. I'm pretty confused on which doctor I'm supposed to believe. I'm going to try to stop the Pristiq, but am not sure what will happen.
Ahh Pristiq, The new SSNRI. Actualy just a slight tweek on Effexor XR.
Interesting fact about Pristiq..... Wyeth's newest Antidepressant medication Pristiq, is actually kind of a sister drug of Effexor XR. In fact in terms of the active ingrediants molecular structure they are about 98% the same.
You know why the Drug Company Wyeth would produce a drug so much like Effexor XR?
recently stopped taking ProzaC BECAUSE IT SEEMED TO LOOSE ITS EFFICACY..{oops} I'm a psych RN and noticed a lot of Pristiq being ordered. I thought I'd give it a go. It's been about 3 and1/2 wks. The regular G.I. probs have gone away. The bizaare side effect I now have is like a psychotic break. I cant talk because I cannot remember what I have said sentence to sentence. I become aware that I am rambling to the poor other person. I dont even remember what i have just said.
Just hot my thyroid levels at a good level. I switched from pristiq to cymbalta back in November. I am tired ALL the time. More than when my thyroid was out of whack. Could the cymbalta be causing this and if so, what if I took it at night?
n pristiq before bed...I suddenly stopped taking pristiq cuz I ran out n my phyciatrist doc office was closed..its beeen 2days now that I haven't taken pristiq..my head hurts bad it feels soar n my neck n ears hurt n eyes a bit..I also have a soar throat..could this b cuz im just stressing n stressing or because I stopped my medication pristiq?? I would like help plzz..im scared..
My doctor put me on pristiq and I am afraid to take it. I took Zoloft while pregnant and stopped about a month after my daughter was born. I felt good then. Then my gp put me on Lexapro and that zonked me out. Back to Zoloft again. I feel just like the depression commercials describe. I hate it. I just would like to know if anyone has been taking it and how you feel on it.
I am a 51 year old female and need to stop pristiq and go back on paxil .
Hi jethrosmom2784,
I'm not familiar with the drug Pristiq. I'm assuming it was your doctor who
prescribed Pristiq for you. If it's not working for you, only your doctor can
help you wean off this drug safely. As with any drug prescribed by a doctor,
it is essential that you not stop this drug by yourself . That can be very
dangerous. My best advice is to go back to your famly doctor. Tell him
or her that you feel Pristiq is not working for you.
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