The only side effect , which is not specific enough and does not refer to wether or not it affects directly to the severity you are undergoing is:
Abnormal, involuntary muscle movements.
If you notice other effects as the ones you are experiencing from this med, contact your doctor or pharmacist. You may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088
What other meds are you taking? They might be interaction between them causing the severity of your RLS.
You probably know the following, just thought it might be helpful.
What causes restless leg syndrome?
The cause of restless leg syndrome is unknown in most patients. However, restless leg syndrome has been associated with pregnancy, obesity, smoking, iron deficiency and anemia, nerve disease, polyneuropathy (which can be associated with hypothyroidism, heavy metal toxicity, toxins, and many other conditions), other hormone disease, such as diabetes, and kidney failure (which can be associated with vitamin and mineral deficiency). Some drugs and medications have been associated with restless leg syndrome including caffeine, alcohol, H2-histamine blockers (such as Zantac and Tagamet), and certain antidepressants (such as Elavil).
From a caring individual...
- Zanaflex Information for Consumers
- Zanaflex Information for Healthcare Professionals (includes dosage details)
- Side Effects of Zanaflex (detailed)
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