16 Jul 2011
Loss of appetite and weight loss are common side effects of this medication and significant weight loss is a severe side effect, which if you experience , you must seek immediate medical attention.-
Side Effects of Effexor - for the Consumer
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Effexor:
Anxiety; blurred vision; changes in taste; constipation; decreased sexual desire or ability; dizziness; drowsiness; dry mouth; flushing; headache; increased sweating; loss of appetite; nausea; nervousness; stomach upset; trouble sleeping; vomiting; weakness; weight loss; yawning.
Seek medical attention right away if any of these SEVERE side effects occur when using Effexor:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); bizarre behavior; blood in the stool; chest pain or discomfort; confusion; decreased concentration; decreased coordination; decreased urination; fainting; fast or irregular heartbeat; fever, chills, or sore throat; hallucinations; memory problems; new or worsening aggressiveness, agitation, hostility, impulsiveness, inability to sit still, irritability, panic attacks, or restlessness; persistent or severe ringing in the ears; red, swollen, blistered, or peeling skin; seizures; severe or persistent anxiety, nervousness, or trouble sleeping; severe or persistent cough; severe or persistent headache, dizziness, stomach pain, or weakness; shortness of breath; significant weight loss; suicidal thoughts or attempts; tremor; trouble concentrating; unsteadiness or loss of coordination; unusual bruising or bleeding; unusual or severe mental or mood changes; unusual weakness; vision problems; worsening of depression.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.
16 Jul 2011
As maso pointed out, it is more likley to cause weight loss than weight gain. Though everyone responds differently to these medications so if you find that your appetite increases, try to stick with the low calorie foods. I take Pristiq which is very similar to Effexor and have been able to lose weight over the past few months but I have had to really change my eating habits.
16 Jul 2011
I am just going to add this in my young years when I went through an episode of this and panic the doctor talked with me about weight and various medications, I was told that some people who are depressed and deal with anxiety tend to do one of two things either loose or gain weight, I suspect that if can be a combination of the depressed person and perhaps the medicine as well. I wish you the very best!
16 Jul 2011
Hello there Patti1280. Just to add on to whats allready been said. I was on effexor and while taking it, had no weight gain, and very little if any weight loss. I really stayed much the same, in regards to the weight department. Heres hopeing it helps you, if you're planning to begin to take it.best wishes to you.
- Effexor Information for Consumers
- Effexor Information for Healthcare Professionals (includes dosage details)
- Side Effects of Effexor (detailed)
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