What is the most important information you should know about Dysport? Spread of Toxin Effects: In some cases, the effects of Dysport and all botulinum toxin products may affect areas of the body away from the injection site. Symptoms can happen hours to weeks after injection and may include swallowing and breathing problems, loss of strength and muscle weakness all over the body, double vision, blurred vision and drooping eyelids, hoarseness or change or loss of voice, trouble saying words clearly, or loss of bladder control. Swallowing and breathing problems can be life threatening and there have been reports of death. You are at the highest risk if these problems are pre‐existing before injection.
These effects could make it unsafe for you to drive a car, operate machinery, or do other dangerous activities.
Do not have Dysport treatment if you: are allergic to Dysport or any of its ingredients (see the end of the Medication Guide for a list of ingredients), are allergic to cow’s milk protein, had an allergic reaction to any other botulinum toxin product, such as Myobloc®, Botox®, or Xeomin®, have a skin infection at the planned injection site, under 18 years of age, or are pregnant or breastfeeding.
The dose of Dysport is not the same as the dose of any other botulinum toxin product and cannot be compared to the dose of any other product you may have used.
Tell your doctor about any swallowing or breathing difficulties and all your muscle or nerve conditions such as amyotrophic lateral sclerosis [ALS or Lou Gehrig’s disease], myasthenia gravis, or Lambert‐Eaton syndrome, which may increase the risk of serious side effects including difficulty swallowing and difficulty breathing. Serious allergic reactions have occurred with the use of Dysport. Dry eye has also been reported.
Tell your doctor about all of your medical conditions, including if you have surgical changes to your face, very weak muscles in the treatment area, any abnormal facial change, injection site inflammation, droopy eyelids or sagging eyelid folds, deep facial scars, thick oily skin, wrinkles that can’t be smoothed by spreading them apart, or if you are pregnant or breastfeeding or planning to become pregnant or breastfeed.
Tell your doctor about all the medicines you take, including prescription and nonprescription medicines, vitamins and herbal and other natural products. Using Dysport with certain other medicines may cause serious side effects. Do not start any new medicines while taking Dysport without talking to your doctor first.
Especially tell your doctor if you: have received any other botulinum toxin product, such as Myobloc® (rimabotulinumtoxinB), Botox® (onabotulinumtoxinA), or Xeomin® (incobotulinumtoxinA), in the last four months or any in the past (be sure your doctor knows exactly which product you received, have recently received an antibiotic by injection, take muscle relaxants, take an allergy or cold medicine, or take a sleep medicine.
Common Side Effects
The most common side effects are nose and throat irritation, headache, injection site pain, injection site skin reaction, upper respiratory tract infection, eyelid swelling, eyelid drooping, sinus inflammation, and nausea.