Adults should consume between 5 and 15 micrograms of vitamin D each day to keep their bodies functioning properly, the National Institutes of Health Office of Dietary Supplements reports. Sun exposure is the primary source of vitamin D for humans, and certain food products such as cod liver oil and salmon are excellent dietary sources of this nutrient. Your doctor may recommend treatment with a vitamin D supplement called cholecalciferol if you develop vitamin D deficiency. Talk with your doctor about cholecalciferol side effects before beginning treatment with this vitamin D supplement.
Breathing Difficulties
Treatment with cholecalciferol may induce breathing problems, Drugs.com reports. You may develop shortness of breath, which can make it difficult for you to perform normal physical activities such as climbing a flight of stairs. Sensations of chest pain or tightness may also arise and may exacerbate breathing difficulties. Seek immediate medical care if you develop these side effects of cholecalciferol as these complications may also be signs of other health problems, such as heart attack.
Increased Urination
Increased urination may occur as a side effect of taking this vitamin D supplement. You may need to use the bathroom more frequently throughout the day or you may notice that you excrete more urine than normal. Increased urinary urges may disrupt your normal sleep routine and may cause you to wake several times during the night. If you experience increased urination in conjunction with pain, burning or weight loss, consult your doctor. Such side effects may be signs of a urinary tract infection or an alternate medical condition such as diabetes.
Irritability or Confusion
Mood or mental changes may arise as side effects of taking cholecalciferol. You may feel irritable or agitated or may have difficulty thinking clearly. If sudden mood changes persist, talk with your doctor.
Vitamin D Overdose
High dosages of cholecalciferol or prolonged treatment with this vitamin D supplement may significantly elevate the amount of vitamin D in your body. Excessively high vitamin D levels may cause overdose symptoms such as weight loss, constipation, dry mouth, weakness, headache, fainting, itchy skin, decreased libido, heart rate irregularities, bone or muscle pain or upset stomach, the Victorian Department of Health in Australia reports. If you exhibit any of these symptoms while taking cholecalciferol, contact your medical provider as soon as possible to ensure you receive prompt and appropriate care. Left untreated, a vitamin D overdose may be life-threatening.
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