BOTOX
® for injection is indicated for the treatment of upper limb spasticity in adult
patients to decrease the severity of increased muscle tone in elbow flexors (biceps), wrist
flexors (flexor carpi radialis and flexor carpi ulnaris), and finger flexors (flexor digitorum
profundus and flexor digitorum sublimis).
Safety and effectiveness of BOTOX
® have not been established for the treatment of
other upper limb muscle groups, or for the treatment of lower limb spasticity. Safety and
effectiveness of BOTOX
® have not been established for the treatment of spasticity
in pediatric patients under age 18 years. BOTOX
® has not been shown to improve upper
extremity functional abilities, or range of motion at a joint affected by a fixed contracture.
Treatment with BOTOX
® is not intended to substitute for usual standard of care
rehabilitation regimens.
BOTOX
® is indicated for the treatment of adults with cervical dystonia to reduce the
severity of abnormal head position and neck pain associated with cervical dystonia.
BOTOX
® is indicated for the treatment of strabismus and blepharospasm associated with
dystonia, including benign essential blepharospasm or VII nerve disorders in patients 12 years of
age and above.
BOTOX
® is indicated for the treatment of severe primary axillary hyperhidrosis that is
inadequately managed with topical agents.
The safety and effectiveness of BOTOX
® for hyperhidrosis in other body areas have not
been established. Weakness of hand muscles and blepharoptosis may occur in patients who receive
BOTOX
® for palmar hyperhidrosis and facial hyperhidrosis, respectively. Patients should
be evaluated for potential causes of secondary hyperhidrosis (eg, hyperthyroidism) to avoid
symptomatic treatment of hyperhidrosis without the diagnosis and/or treatment of the underlying
disease.
Safety and effectiveness of BOTOX® have not been established for the treatment of
axillary hyperhidrosis in pediatric patients under age 18.
Postmarketing reports indicate that the effects of BOTOX® and all botulinum
toxin products may spread from the area of injection to produce symptoms consistent with
botulinum toxin effects. These may include asthenia, generalized muscle weakness, diplopia,
ptosis, dysphagia, dysphonia, dysarthria, urinary incontinence, and breathing difficulties.
These symptoms have been reported hours to weeks after injection. Swallowing and breathing
difficulties can be life threatening, and there have been reports of death. The risk of
symptoms is probably greatest in children treated for spasticity, but symptoms can also
occur in adults treated for spasticity and other conditions, particularly in those patients
who have underlying conditions that would predispose them to these symptoms. In unapproved
uses, including spasticity in children, and in approved indications, cases of spread of
effect have been reported at doses comparable to those used to treat cervical dystonia
and at lower doses.
BOTOX
® is contraindicated in the presence of infection at the proposed injection
site(s) and in individuals with known hypersensitivity to any botulinum toxin preparation or to
any of the components in the formulation.
The potency Units of BOTOX
® are specific to the preparation and assay method utilized.
They are not interchangeable with other preparations of botulinum toxin products and, therefore,
Units of biological activity of BOTOX
® cannot be compared to or converted into Units
of any other botulinum toxin products assessed with any other specific assay method.
See Boxed Warning.
No definitive serious adverse event reports of distant spread of toxin effect associated with
BOTOX® for blepharospasm at the recommended dose (30 Units and below) or for strabismus
at the labeled doses have been reported.
Serious and/or immediate hypersensitivity reactions have been reported. These reactions include
anaphylaxis, serum sickness, urticaria, soft-tissue edema, and dyspnea. If such a reaction occurs,
further injection of BOTOX
® should be discontinued and appropriate medical therapy
immediately instituted. One fatal case of anaphylaxis has been reported in which lidocaine was
used as the diluent, and consequently the causal agent cannot be reliably determined.
Treatment with BOTOX
® and other botulinum toxin products can result in swallowing or
breathing difficulties. Patients with pre-existing swallowing or breathing difficulties may be
more susceptible to these complications. When distant effects occur, additional respiratory
muscles may be involved (see Boxed Warning).
Individuals with peripheral motor neuropathic diseases, amyotrophic lateral sclerosis, or
neuromuscular junctional disorders (eg, myasthenia gravis or Lambert-Eaton syndrome) should be
monitored particularly closely when given botulinum toxin. Patients with neuromuscular disorders
may be at increased risk of clinically significant effects including severe dysphagia and
respiratory compromise from typical doses of BOTOX
®.
Patients with compromised respiratory status treated with BOTOX
® for upper limb
spasticity should be monitored closely.
Reduced blinking from BOTOX
® injection of the orbicularis muscle can lead to corneal
exposure, persistent epithelial defect, and corneal ulceration, especially in patients with VII
nerve disorders.
During the administration of BOTOX
® for the treatment of strabismus, retrobulbar
hemorrhages sufficient to compromise retinal circulation have occurred. It is recommended that
appropriate instruments to decompress the orbit be accessible.
Bronchitis was reported more frequently as an adverse reaction in patients treated for upper limb
spasticity with BOTOX
® (3% at 251-360 Units total dose) compared to placebo (1%). In
patients with reduced lung function treated for upper limb spasticity, upper respiratory tract
infections were also reported more frequently as adverse reactions in patients treated with
BOTOX
® (11% at 360 Units total dose; 8% at 240 Units total dose) compared to placebo
(6%).
The following adverse reactions to BOTOX
® for injection are discussed in greater detail
in the following sections: Spread of Toxin Effect (see Boxed Warning); Hypersensitivity Reactions
(see
Contraindications and Warnings and Precautions); Bronchitis and Upper Respiratory Tract
Infections in Patients Treated for Spasticity (see
Warnings and Precautions).
The most frequently reported adverse reactions following injection of BOTOX
® for upper
limb spasticity include pain in extremity, muscle weakness, fatigue, nausea, and bronchitis.
The most frequently reported adverse reactions following injection of BOTOX
® for
cervical dystonia include dysphagia (19%), upper respiratory infection (12%), neck pain (11%),
and headache (11%).
The most frequently reported adverse reactions following injection of BOTOX
® for
blepharospasm include ptosis (21%), superficial punctate keratitis (6%), and eye dryness (6%).
The most frequently reported adverse events following injection of BOTOX
® for strabismus
include ptosis (15.7%) and vertical deviation (16.9%).
The most frequently reported adverse events (3%-10% of adult patients) following injection of
BOTOX
® for severe primary axillary hyperhidrosis include injection-site pain and
hemorrhage, non-axillary sweating, infection, pharyngitis, flu syndrome, headache, fever, neck
or back pain, pruritus, and anxiety.
There have been spontaneous reports of death, sometimes associated with dysphagia, pneumonia,
and/or other significant debility or anaphylaxis, after treatment with botulinum toxin. There
have also been reports of adverse events involving the cardiovascular system, including arrhythmia
and myocardial infarction, some with fatal outcomes. Some of these patients had risk factors
including cardiovascular disease. The exact relationship of these events to the botulinum toxin
injection has not been established.
Please see
full prescribing information including
Medication Guide.