Botox Injections
What is it?
Botox is the name for a drug made from botulinum toxin
type A. Botulinum toxin is the bacteria responsible for a
type of food poisoning called botulism. However, when
administered in very small doses, it blocks the release of
the neurotransmitter acetylcholine, which helps transmit
nerve impulses. Botox paralyzes the affected muscle, which
relieves painful muscle spasms and tremors and helps
control an embarrassing condition called hyperhidrosis
(excessive sweating). Botox is probably best known for its
use as an antiaging treatment because it smoothes wrinkles
in the face and neck area.
Who needs this procedure?
Botox is used to treat patients with diseases that
cause muscle spasms and tremors, such as multiple
sclerosis and cerebral palsy; neurological conditions such
as muscle spasms of the neck and shoulders (cervical
dystonia), muscle spasms of the eyelid (blepharospasm),
and muscle spasms of the face (hemifacial spasm); and
hyperhidrosis. It has also been found effective in
treating migraine headaches and leg stiffness/weakness (spasticity)
in stroke patients.
How do I prepare for this procedure?
There are no special preparations for Botox injections.
How is this procedure performed?
Botox is injected through a hypodermic needle into the
affected area. For example, in patients with hyperhidrosis,
Botox is injected into the area where excessive sweating
is a problem, such as the hands or underarms. For
conditions that cause muscle spasms or tremors, the drug
is injected into the affected muscles. In the treatment of
migraines, Botox is injected into the forehead area. Botox
is not a permanent treatment. Patients require many small
injections during one session. Results may last anywhere
from weeks to months before additional injections are
needed.
What can I expect after the procedure?
Patients who are receiving Botox injections to treat
muscle spasms and tremors usually require physical or
occupational therapy to maintain muscle mobility and
strength. Some patients may experience some temporary
weakness and discomfort in the treated area. Others may
develop a resistance to botulinum toxin type A, but may
respond to the type B form.
This information has been designed as a comprehensive and quick reference
guide written by our health care reviewers. The health information written
by our authors is intended to be a supplement to the care provided by your
physician. It is not intended nor implied to be a substitute for
professional medical advice.
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