Effexor, a medication also known by the generic name venlafaxine, has not been reported to cause problems with the absorption of vitamins. It may cause other side effects that should be monitored by a physician, however. In addition, if you suspect that your body is absorbing nutrients improperly, you should contact the doctor who prescribed this medication to you.
Effexor
According to Drugs.com, Effexor is a brand of antidepressant that can be used to treat depression, anxiety, panic attacks and migraines. It works by altering your brain chemistry to increase neurotransmitters like serotonin and norepinephrine, which help you remain emotionally balanced. Effexor is only available as a prescription medication and is sold as either a tablet or a capsule to be taken orally. You should not take Effexor with blood thinners, diuretics, sedatives or other medications that can alter your body’s chemistry.
Side Effects
Although vitamin malabsorption is not a known side effect of Effexor, the medication can cause other side effects. These side effects can be dangerous and include seizures, hallucinations, confusion, trouble breathing and fainting. Less serious effects may include gastrointestinal problems like nausea, diarrhea and heartburn. Others can include strange dreams, increased sweating, blurry vision and dry mouth. If you experience any side effects that concern you while taking Effexor, you should contact your physician for an adjusted dose or change in medication.
Vitamin Absorption Problems
According to PubMed Health, many illnesses and medical problems—particularly those that affect your digestive tract—can cause vitamin malabsorption, an impairment in your body's ability to absorb vitamins. Diseases like celiac disease, Crohn’s disease, chronic liver disease and parasites all affect your gastrointestinal system and can prevent your body from absorbing adequate vitamins. Other illnesses, like AIDS, some cancers, surgery and Whipple’s disease, can also cause malabsorption of vitamins. Symptoms of vitamin malabsorption include unexplained muscle wasting and weight loss.
Treatment
If you are concerned that you may be lacking some vitamins, a multivitamin can help overcome absorption problems by providing a concentrated dose of nutrients. If you notice any symptoms of vitamin-specific deficiencies or experience symptoms of malnutrition and malabsorption, contact your doctor with your concerns. If you are taking Effexor and notice severe side effects such as fainting or seizures, contact your local emergency services immediately.
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