Thioxanthenes (Systemic)
Side Effects of This MedicineAlong with their needed effects,
thioxanthenes can sometimes cause serious side effects. Tardive dyskinesia
(a movement disorder) may occur and may not go away after you stop using the
medicine. Signs of tardive dyskinesia include fine, worm-like movements of
the tongue, or other uncontrolled movements of the mouth, tongue, cheeks,
jaw, or arms and legs. Other serious but rare side effects may also occur.
Some of these side effects, including severe muscle stiffness, fever, unusual
tiredness or weakness, fast heartbeat, difficult breathing, increased sweating,
loss of bladder control, and seizures, may be the sign of a condition called
neuroleptic malignant syndrome. You and your doctor should
discuss the good this medicine will do as well as the risks of taking it
.
Although not all of these side effects may occur, if they do occur they
may need medical attention.
Stop taking this medicine
and get emergency help immediately
if any of the following side effects
occur:
Also, check with your doctor as soon as possible if any of the following
side effects occur:
More common
Difficulty in talking or swallowing; inability to move eyes; lip smacking or puckering; loss of balance control; mask-like face; muscle spasms, especially of the
neck and back; puffing of cheeks; rapid or worm-like movements of tongue; restlessness
or need to keep moving (severe); shuffling walk; stiffness of arms and legs; trembling
and shaking of fingers and hands; twisting movements
of body; uncontrolled chewing movements; uncontrolled movements of the arms and legs
Rare
Hot, dry skin or lack of sweating; increased blinking or spasms of eyelid; muscle weakness; sore throat and fever; uncontrolled twisting movements of neck, trunk, arms, or legs; unusual bleeding or bruising; unusual
facial expressions or body positions; yellow eyes
or skin
Symptoms of overdose
Difficulty in breathing (severe); dizziness
(severe); drowsiness (severe); muscle trembling, jerking, stiffness, or uncontrolled movements (severe); small pupils; unusual excitement; unusual tiredness or weakness (severe)
Other side effects may occur
that usually do not need medical attention. These side effects may go away
during treatment as your body adjusts to the medicine. However, check with
your doctor if any of the following side effects continue or are bothersome:
More common
Constipation; decreased sweating; dizziness, lightheadedness, or fainting; drowsiness (mild); dryness of mouth; increased appetite and weight; increased
sensitivity of skin to sunlight (skin rash, itching, redness or other discoloration
of skin, or severe sunburn); stuffy nose
After you
stop taking this medicine your body may need time to adjust, especially if
you took this medicine in high doses or for a long time. If you stop taking
it too quickly, the following withdrawal effects may occur and should be reported
to your doctor:
Dizziness; nausea and vomiting; stomach pain; trembling of fingers and
hands; uncontrolled, continuing movements of mouth,
tongue, or jaw Although not all of the side effects listed
above have been reported for all thioxanthenes, they have been reported for
at least one of them. However, since these medicines are very similar, any
of the above side effects may occur with any of them.
Other side effects not listed above may also occur in
some patients. If you notice any other effects, check with your doctor.
|