CD, also called spasmodic torticollis, is a neurological movement disorder that causes the muscles in your neck to contract (tighten) involuntarily.
This muscle tightening can cause you to hold your head and neck in painful, abnormal positions.
These painful, abnormal head positions can cause discomfort and challenges in your everyday life.1
Normally, your brain sends chemical signals to your head and neck muscles to keep their movements smooth and controlled. In patients with CD, these signals work improperly. When acetylcholine, one of the chemical signals, is released at above-normal amounts, it causes muscles to be tense and overactive.
In some cases of CD, causes can be linked to neck, head and shoulder injuries, and certain drugs.2
MYOBLOC® (rimabotulinumtoxinB) injection is indicated for:
MYOBLOC® may cause serious side effects that can be life threatening. Call your doctor or get medical help right away if you have any of these problems anytime (hours to weeks) after treatment with MYOBLOC:
MYOBLOC is a prescription medicine used in adults that is injected into:
Do not receive MYOBLOC if you: are allergic to MYOBLOC or any of its ingredients (see Medication Guide for ingredients); had an allergic reaction to any other botulinum toxin product such as BOTOX® or BOTOX® Cosmetic, DYSPORT®, or XEOMIN®; have a skin infection at the planned injection site.
Tell your doctor about all your medical conditions, including if you have: a disease that affects your muscles or nerves (such as ALS or Lou Gehrig’s disease, myasthenia gravis, or Lambert-Eaton syndrome); had any side effect from any botulinum toxin product in the past; a breathing problem, such as asthma or emphysema; a history of swallowing problems or aspiration; bleeding problems; drooping eyelids; plans to have surgery; had surgery on your face.
Tell your doctor if you: are pregnant or plan to become pregnant (it is not known if MYOBLOC can harm your unborn baby); are breastfeeding or plan to breastfeed (it is not known if MYOBLOC passes into breast milk).
Tell your doctor about all medicines you take, including: prescription and over-the-counter medicines, vitamins, and herbal supplements. Using MYOBLOC with certain other medicines may cause serious side effects. Do not start any new medicines until you have told your doctor that you have received MYOBLOC in the past.
Especially tell your doctor if you: received any other botulinum toxin product in the last 4 months; received injections of botulinum toxin such as BOTOX® or BOTOX® Cosmetic, DYSPORT®, or XEOMIN® in the past (tell your doctor exactly which product you received); recently received an antibiotic injection; take muscle relaxants; take allergy or cold medicines; take sleep medicine.
MYOBLOC can cause serious side effects, including allergic reactions. Symptoms of allergic reaction may include: itching, rash, redness, swelling, wheezing, trouble breathing, or dizziness or feeling faint. Tell your doctor or get medical help right away if you get wheezing, or trouble breathing, or if you get dizzy or faint.
Other side effects of MYOBLOC include:
For more information, refer to the Medication Guide or talk with your doctor.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.