It's not the medication, it's the manufacturer. Research Teva on the internet and you'll find a LOT of complaints about their products.
Ask for Effexor XR made by Wyeth/Pfizer.
What side effects are possible with this medication?
Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent. The side effects listed below are not experienced by everyone who takes this medication. If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor.
The following side effects have been reported by at least 1% of people taking this medication. Many of these side effects can be managed, and some may go away on their own over time.
Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.
* abnormal dreams
* abnormal vision
* changes in taste
* chills
* constipation
* diarrhea
* dizziness
* drowsiness
* dry mouth
* flushing
* headache
* heartburn
* increased sweating
* loss of appetite
* menstrual changes
* nausea
* nervousness
* sexual difficulties
* stomach pain or gas
* tingling, burning or prickly sensation
* trembling or shaking
* trouble sleeping
* unusual tiredness or weakness
* vomiting
* weight loss
* yawning
Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
* changes in vision, such as blurred vision
* increase in frequency of urination or amount of urine produced
* lightheadedness or fainting, especially when rising suddenly from a sitting or lying position
* mood or mental changes
* ringing or buzzing in ears
* serotonin syndrome - symptoms include:
o confusion
o diarrhea
o fever
o poor coordination
o restlessness
o shivering
o sweating
o trembling or shaking
o twitching
* severe abdominal pain
* signs of liver damage such as yellowing of the skin and eyes; abdominal pain; dark urine; clay-coloured stools; loss of appetite; or nausea and vomiting
* swelling of the hands or feet (if there is no shortness of breath)
* trouble holding or releasing urine
* unusual or sudden body or facial movements or postures
Stop taking the medication and seek immediate medical attention if any of the following occur:
* attempts at suicide or thoughts of suicide
* chest pain
* convulsions (seizures)
* fast or irregular heartbeat
* muscle pain or weakness
* red or purple patches on skin
* reddening, blistering, peeling, or loosening of skin and mucous membranes
* severe headache upon wakening that is concentrated in the back of the head and neck
* signs of an allergic reaction (such as difficulty breathing, hives, swelling of the face or throat)
* swelling of the hands or feet with shortness of breath
Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication.
Information from:http://ghc.mediresource.com/drug_detail.asp?brand_name_id=4513
Also....this medication has my pupils veryy dilated and my eyes wide open. I feel like I was ready to jump off the walls all night but now the affects wore off and I feel soo tired but I can't sleep.