Generic Name: RimabotulinumtoxinB (rime uh BOT yoo lin num TOKS in bee)
Brand Name: Myobloc
Medically reviewed by Drugs.com. Last updated on Apr 20, 2020.
- Very bad side effects have happened when Myobloc (rimabotulinumtoxinB) has spread from where it is being used. These signs can happen within hours up to weeks after the shot. Swallowing and breathing problems can cause death. The risk is greatest in children with current muscle problems. Call your doctor right away if you have blurred eyesight, change in voice, drooping eyelids, or loss of strength or weakness all over the body. Call your doctor right away if you are not able to control your bladder, are seeing double, or have trouble breathing, speaking, or swallowing.
Uses of Myobloc:
- It is used to treat spasms of the neck.
- It is used to reduce drooling.
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Myobloc?
- If you have an allergy to rimabotulinumtoxinB, albumin, or any other part of Myobloc (rimabotulinumtoxinB).
- If you are allergic to Myobloc (rimabotulinumtoxinB); any part of Myobloc (rimabotulinumtoxinB); or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.
- If you have an infection where the shot will be given.
This is not a list of all drugs or health problems that interact with Myobloc (rimabotulinumtoxinB).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Myobloc (rimabotulinumtoxinB) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Myobloc?
- Tell all of your health care providers that you take Myobloc (rimabotulinumtoxinB). This includes your doctors, nurses, pharmacists, and dentists.
- Avoid driving and doing other tasks or actions that call for you to be alert or have clear eyesight until you see how Myobloc (rimabotulinumtoxinB) affects you.
- This medicine is made from human plasma (part of the blood) and may have viruses that may cause disease. This medicine is screened, tested, and treated to lower the chance that it carries an infection. Talk with the doctor.
- Tell your doctor if you are pregnant, plan on getting pregnant, or are breast-feeding. You will need to talk about the benefits and risks to you and the baby.
How is this medicine (Myobloc) best taken?
Use Myobloc (rimabotulinumtoxinB) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- It is given as a shot.
What do I do if I miss a dose?
- Call your doctor to find out what to do.
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of infection like fever, chills, very bad sore throat, ear or sinus pain, cough, more sputum or change in color of sputum, pain with passing urine, mouth sores, or wound that will not heal.
- Feeling tired or weak.
What are some other side effects of Myobloc?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Dry mouth.
- Upset stomach.
- Pain where the shot was given.
- Neck pain.
- Flu-like signs.
- Joint pain.
- Back pain.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-332-1088. You may also report side effects at https://www.fda.gov/medwatch.
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Myobloc?
- If you need to store Myobloc (rimabotulinumtoxinB) at home, talk with your doctor, nurse, or pharmacist about how to store it.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- This medicine comes with an extra patient fact sheet called a Medication Guide. Read it with care. Read it again each time Myobloc (rimabotulinumtoxinB) is refilled. If you have any questions about Myobloc (rimabotulinumtoxinB), please talk with the doctor, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Myobloc (rimabotulinumtoxinB)
- Side Effects
- During Pregnancy
- Dosage Information
- Drug Interactions
- Pricing & Coupons
- En Español
- 2 Reviews
- Drug class: skeletal muscle relaxants
- FDA Alerts (2)
- FDA Approval History