Is twitching a side effect of Effexor XR?

Get medical help right away if you develop some of the following symptoms: fast heartbeat, hallucinations, loss of coordination, severe dizziness, severe nausea/vomiting/diarrhea, twitching muscles, unexplained fever, unusual agitation/restlessness. A very serious allergic reaction to this drug is rare.

Does Effexor make you nervous?

severe nervous system reaction–very stiff (rigid) muscles, high fever, sweating, confusion, fast or uneven heartbeats, tremors, feeling like you might pass out.

How long do the side effects of Effexor XR last?

Key facts. It usually takes 4 to 6 weeks for venlafaxine to work. Side effects such as feeling sick, headaches, sweating, and dry mouth are common. They are usually mild and go away after a couple of weeks.

What are the worst side effects of Effexor?

Serious side effects and their symptoms can include the following:

  • Seizures.
  • Serotonin syndrome (high levels of serotonin, a chemical in your brain).
  • High blood pressure.
  • Abnormal bleeding.
  • Hyponatremia (low sodium levels).
  • Lung disease and pneumonia.
  • Withdrawal symptoms (if you stop taking the drug suddenly).

Do Effexor XR side effects go away?

Some side effects, such as nausea, may occur when you first start taking Effexor XR but may go away after you take it for a while. Other side effects, including decreased appetite and changes in weight, may last throughout your treatment.

Can Effexor cause brain fog?

Put on Effexor, 75mg. Took about 2 weeks to get used to it. Yes, head in a fog. Eventually things normalized and dosage did not have to be increased.

What do you need to know about Effexor XR?

Effexor XR extended-release capsules are a prescription medicine indicated for the treatment, in adults, of Major Depressive Disorder (MDD), Generalized Anxiety Disorder (GAD), Social Anxiety Disorder (SAD), and Panic Disorder (PD) with or without agoraphobia. Please see Full Prescribing Information, including BOXED WARNING and Medication Guide.

How often should I take Effexor XR for generalized anxiety disorder?

Generalized Anxiety Disorder. For most patients, the recommended starting dose for Effexor XR is 75 mg per day, administered in a single dose. For some patients, it may be desirable to start at 37.5 mg per day for 4 to 7 days to allow new patients to adjust to the medication before increasing to 75 mg per day.

When is the best time of day to take Effexor XR?

Effexor XR should be administered in a single dose with food, either in the morning or in the evening at approximately the same time each day [see Clinical Pharmacology (12.3)].

Why do I get shakiness when I take Effexor?

Effexor – causing shakiness… Effexor – causing shakiness, nervousness, sweating so Dr increased dose, is this normal? Hello all! I started Effexor XR one month ago at 75 mg. I went to my Doctor today because I’ve been having problems with shakiness, nervousness, sweating and sometimes just feel out of it.