Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • fluid retention in the legs, feet, arms or hands

If experienced, these tend to have a Less Severe expression i

  • drowsiness
  • dizziness
  • irritation of the stomach or intestines
  • difficulty sleeping
  • nervousness
  • dry mouth
  • nausea
  • vomiting
  • diarrhea
  • constipation
  • decreased sweating

INFREQUENT side effects

If experienced, these tend to have a Severe expression i

  • confusion
  • over excitement
  • low energy and weakness

If experienced, these tend to have a Less Severe expression i

  • nightmares
  • constipation
  • fainting
  • sensation of spinning or whirling
  • difficulty sleeping
  • headache
  • nausea
  • vomiting
  • nervousness
  • irritability
  • anxious feelings
  • over excitement
  • blurred vision
  • dry mouth
  • decreased breast milk production

RARE side effects

If experienced, these tend to have a Severe expression i

  • rickets
  • megaloblastic anemia
  • very low levels of granulocytes, a type of white blood cell
  • mental problems
  • slow heartbeat
  • low blood pressure
  • a feeling of throat tightness
  • damage to the liver and inflammation
  • inflammation of the skin due to an allergy
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • skin rash with sloughing
  • hives
  • decreased calcification or density of bone
  • decreased alertness or consciousness
  • memory loss
  • hallucinations
  • a skin rash
  • apnea, a breathing interruption
  • wheezing
  • trouble breathing
  • a significant type of allergic reaction called anaphylaxis
  • a type of allergic reaction called angioedema
  • a hypersensitivity reaction to a drug
  • slow and shallow breathing
  • accidental falls
  • extra heartbeats
  • confusion
  • a change in vision
  • decreased pupil size
  • high blood pressure
  • angina, a type of chest pain
  • abnormal heart rhythm
  • constriction of blood vessels of the extremities
  • a condition where there is formation of fibrous tissue in the lung called pulmonary fibrosis
  • insufficient blood supply to the colon
  • retroperitoneal fibrosis
  • a sudden and temporary constriction of the muscle in the coronary artery
  • thickening of the lining of the lung
  • fibrous thickening of the heart valves
  • increased pressure in the eye
  • orthostatic hypotension, a form of low blood pressure

If experienced, these tend to have a Less Severe expression i

  • addiction to a drug
  • agitation
  • hyperactive behavior
  • loss of muscle coordination
  • complex sleep behaviors like eating or driving while asleep
  • problems thinking clearly
  • blind spot in the eye
  • ringing in the ears
  • muscle tremors
  • nausea
  • vomiting
  • high blood sugar
  • irritability
  • hyperesthesia, an increased nerve sensitivity
  • anxious feelings
  • fast heartbeat
  • dilated pupils
  • drowsiness
  • memory loss
  • headache
  • gas
  • difficult or painful urination
  • generalized weakness
Drug Survey

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Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.