Iodoquinol Side Effects
Some side effects of iodoquinol may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.
For the Consumer
Applies to iodoquinol: oral tablet
Along with its needed effects, iodoquinol may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur while taking iodoquinol:Less common
- Fever or chills
- skin rash, hives, or itching
- swelling of neck
- Blurred vision or any change in vision
- clumsiness or unsteadiness
- decreased vision or eye pain
- increased weakness
- muscle pain
- numbness, tingling, pain, or weakness in hands or feet
Some side effects of iodoquinol may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:More common
- nausea or vomiting
- stomach pain
- itching of the rectal area
For Healthcare Professionals
Applies to iodoquinol: compounding powder, oral tablet
Gastrointestinal side effects have included nausea, vomiting, abdominal cramps, diarrhea, and pruritus ani.
Some neuropathy may be irreversible. Seizures and encephalopathy have been reported in at least one patient. Optic atrophy has been reported, generally in children being treated for acrodermatitis enteropathica at daily dosages between 1300 to 3600 mg for up to two years. Visual deterioration is generally irreversible.
Clioquinol, another hydroxyquinoline, was associated with several thousand cases of subacute myelo-optic neuropathy in Japan, leading to its removal from the market. This syndrome consisted of peripheral weakness, spastic paraparesis, dysesthesia, and optic neuropathy.
Because of the neurotoxicity associated with iodoquinol and its growing use in pediatric patients for the treatment of nonspecific chronic diarrhea in the 1970's, the American Academy of Pediatrics Committee on Drugs issued a statement recommending that products containing clioquinol or iodoquinol not be used in pediatric patients.
Nervous system side effects have been reported rarely. These have included peripheral neuropathy and headache. Optic atrophy has been reported, generally in pediatric patients receiving large doses for long periods of time.
Dermatologic side effects have included acneiform papular or pustular skin eruptions, bulla, urticaria, and pruritus. These reactions are related to the iodine content of iodoquinol.
Other side effects have included fever, chills, and enlargement of the thyroid.
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