Effexor, also known as velafaxine, is an antidepressant used to treat panic disorders and major depression. It belongs to a group of drugs called selective serotonin and norepinephrine reuptake inhibitors (SSNRIs). These drugs work by restoring the balance of serotonin and norpinephrine in the brain. Effexor is also used to treat people who have anxiety attacks.
Elevated Blood Pressure
Effexor may cause high blood pressure accompanied by severe headaches or blurry vision. Frequent monitoring of you blood pressure will help you track when there is any elevation. If any of these symptoms occur, report them to your physician.
Worsening of Existing Mental Issues
Effexor works to balance the chemicals in the brain. In some cases, this may take a short period of adjustment. Uncontrollable feelings such as excitement or fear may also be symptoms as the brain adapts to the medication. If your symptoms worsen or you have recurring thoughts of suicide, you should bring this to the attention of your physician immediately. Changing the dosage or taking you off the medication completely may be necessary.
Chest Pain
Unexplained chest pain or an irregular or fast heartbeat may also be cause for concern. Shortness of breath is also a possibility. These are also symptoms of heart attack and stroke and should be monitored and reported to your physician when they occur.
Digestive Issues
Constipation, diarrhea, stomach upset, nausea and vomiting are possible side effects of Effexor. These may range from mild to moderate and could subside as you continue using the drug. If these symptoms become severe, a change in the dosage of the medication could be necessary.
Allergic Reaction
As with any drug, Effexor may cause an allergic reaction. Swelling of the hands, face, lips, throat or tongue are all signs of an allergic reaction. Hives, skin rashes and difficulty breathing may also signal an allergic reaction. Notify your physician immediately if any of these reactions occur.
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