A patient with metastatic cancer has developed trigeminal neuralgia and is taking carbamazepine (Tegretol) for pain relief. What principle applies to the administration of this medication?
A) Tegretol is not known to have serious adverse effects.
B) The patient should be monitored for bone marrow depression.
C) Side effects of the medication include renal dysfunction.
D) The medication should be first taken in the maximum dosage form to be effective.
Ans: B
Feedback:
The anticonvulsant agents carbamazepine (Tegretol) and phenytoin (Dilantin) relieve pain in most patients diagnosed with trigeminal neuralgia by reducing the transmission of impulses at certain nerve terminals. Side effects include nausea, dizziness, drowsiness, and aplastic anemia. Carbamazepine should be gradually increased until pain relief is obtained.
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