Table 2.
Iron deficiency |
Uremia |
Pregancy |
Medications (most frequently reported): |
serotonergic/norepinephrine agents |
dopamine receptor antagonists |
antihistamines |
Neurological conditions: |
spinocerebellar ataxia 1, 2, and 3 |
narcolepsy |
multiple sclerosis |
peripheral neuropathy |
migraine |
amyotrophic lateral sclerosis |
migraine |
Parkinson disease |
Medical conditions: |
celiac disease |
Crohn’s disease |
rheumatoid arthritis |
fibromyalgia |
diabetes |
Psychiatric conditions |
anxiety |
depression |