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1.
J Chemother ; 31(7-8): 424-427, 2019.
Article in English | MEDLINE | ID: mdl-31516092

ABSTRACT

In the current report we present the case of a patient experiencing a life-threatening drug-drug interaction involving the concurrent administration of capecitabine and brivudine. A 65- year-old female with metastatic breast cancer was commenced on brivudine for Herpes Zoster, while on capecitabine treatment, by a physician unfamiliar with the potential repercussions of this drug-drug interaction. As a result, she developed skin rash, severe oral mucositis, and severe and prolonged pancytopenia. These side effects were attributed to a serious interaction of capecitabine with brivudine, resulting in inhibition of dihydropyrimidine dehydrogenase. The patient was admitted for supportive care including intravenous hydration, parenteral nutrition, mouth care solutions, fluconazole, antimicrobial therapy, filgrastim, red blood cell and platelet transfusions. She successfully recovered and was discharged on the 26th day after her admission. Drug-drug interactions can be serious, even life-threatening; thus the physicians should be cautious when prescribing new drugs.


Subject(s)
Antimetabolites, Antineoplastic/adverse effects , Antimetabolites, Antineoplastic/therapeutic use , Antiviral Agents/adverse effects , Breast Neoplasms/drug therapy , Bromodeoxyuridine/analogs & derivatives , Capecitabine/adverse effects , Capecitabine/therapeutic use , Aged , Antiviral Agents/therapeutic use , Bromodeoxyuridine/adverse effects , Bromodeoxyuridine/therapeutic use , Drug Interactions/physiology , Female , Herpes Zoster/drug therapy , Humans
2.
BMJ Case Rep ; 20182018 Mar 05.
Article in English | MEDLINE | ID: mdl-29507029

ABSTRACT

We report the case of a 53-year-old healthy man, presenting with confusion. The patient had been clinically diagnosed with cat-scratch disease (CSD) and prescribed a 10-day course of doxycycline orally. Approximately a week after he had completed the treatment, he was admitted to our department with confusion. Neurological examination revealed expressive dysphasia with no motor or sensory deficits. Cerebrospinal fluid (CSF) examination showed only increased content. Imaging with CT and MRI of the brain did not reveal any abnormalities, and funduscopy was normal. Serology confirmed Bartonella henselae infection. CSD-associated encephalopathy was confirmed based on the clinical manifestations, CSF findings and positive serology. The patient was treated with a combination of doxycycline and rifampin and he rapidly improved with complete neurological recovery within 7 days. Encephalopathy is an unusual manifestation of CSD in adults with excellent prognosis.


Subject(s)
Brain Diseases/etiology , Cat-Scratch Disease/complications , Anti-Bacterial Agents/therapeutic use , Aphasia/etiology , Bartonella henselae/isolation & purification , Brain/diagnostic imaging , Brain Diseases/cerebrospinal fluid , Cat-Scratch Disease/drug therapy , Cat-Scratch Disease/microbiology , Doxycycline/therapeutic use , Drug Therapy, Combination , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Rifampin/therapeutic use , Tomography, X-Ray Computed
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