Levothyroxine is a drug used to
treat a lazy thyroid or hypothyroidism. While it is usually well accepted by the body, there is a risk for
developing side effects of levothyroxine, such as allergic reactions if the
drug is not taken properly. This drug
contains a synthetically produced replacement for the thyroid hormone which can
supplant the body's natural stores. Levothyroxine is prescribed when the
thyroid has become impaired due to surgery, radiation, other drugs, or in the
event that the thyroid must be detached.
Levothyroxine is anticipated to be
used together with other forms of treatment including diet and exercise to
sustain the fittest levels of thyroid function possible. This drug cannot be used to stimulate weight
loss or infertility, unless these issues correlate from poor thyroid function.Taking levothyroxine combined with diet pills can cause perilous and
potentially fatal side effects.
General Side Effects of Levothyroxine
In general, levothyroxine
is well accepted in patients. Most side
effects originate from overusing the drug or using it erroneously. Follow all instructions from your healthcare
professional when using levothyroxine and inquire about anything you do not
understand. Common side effects of
levothyroxine include heat intolerance, anxiety,
increased appetite, weight loss, insomnia,
diarrhea,
palpitations, tachycardia, hypertension, angina, increased bowel frequency and
menstrual irregularities. These side
effects classically appear several weeks after starting your prescription.
Cardiovascular Effects
Cardiovascular symptoms including
angina, tachycardia, palpitations and hypertension have been reported in
clinical trials when testing levothyroxine.
Patients already experiencing an underlying cardiovascular condition or
disorder including heart disease or decreased cardiovascular function were
significantly more likely to develop such side effects.Those with enhanced left ventricular systolic
function and increased left ventricular mass index are also at high risk for
developing cardiovascular side effects while using this drug.
Endocrine Problems
Adrenal cortical insufficiency or an
increased presence of diabetes symptoms may occur when taking this drug.Those who are already at risk for having such
conditions should consult with their healthcare professional about any
potential risk before starting regular doses of levothyroxine.
Nervous System Effects
Neurological side effects to
levothyroxine are erratic.Seizures have
been reported during the initiation of therapy, but these usually regress after
a few months. Muscle weakness or
hyperactivity leading to crankiness or unexplained irritability, have been
reported in some patients taking levothyroxine.
Dermatologic Problems
Mild hair loss
is usually observed when using levothyroxine. This side effect is not hazardous and typically halts after the body
becomes acclimated to altered hormone levels. Temporary dermatologic effect has also been reported in the early months
of using the drug.
Musculoskeletal Effects
An increased risk for osteoporosis
has been reported in the prolonged use of this drug, particularly in those that
are already at risk for developing the condition. The rates of femur fractures are greater in
those using thyroid therapies than those who do not, especially in women. Reported by patients, is the feeling as
though bones are more brittle, or are more prone to injury after using
levothyroxine for long periods of time.
