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P058 Two cases of deliberate antiretroviral overdose: raltegravir and tenofovir disaproxil fumarate/emtricitabine
  1. Emma Wainwright,
  2. Alan Tang,
  3. Fabian Chen
  1. Royal Berkshire HospItal NHS Foundation Trust, Reading, UK


Background/introduction There is a high incidence of psychiatric illness amongst those living with HIV. This is associated with a risk of deliberate self harm including overdose with antiretrovirals. There are a small number of publications describing overdose with antiretrovirals but none describing overdose with raltegravir.

Aim(s)/objectives In this report we aim to describe two cases of overdose with antiretrovirals: the management, investigations and resultant complications.

Methods The patient case notes and laboratory test results were reviewed.

Results Case 1: A 28 year old HIV-positive man presented 96 hours after taking a deliberate overdose of 40 x 400mg raltegravir tablets. He developed mild symptoms of diarrhoea, abdominal cramps and a sore chest. Results post-overdose: electrolytes and renal function: normal; liver function tests: ALT 58, others normal; creatinine kinase 67; haematology: normal; therapeutic drug monitoring (TDM) results: raltegravir not detected 96 hours post overdose. There were no serious complications. Case 2: A 52 year old HIV-positive man presented 24 hours after taking a deliberate overdose of 18 × Truvada (tenofovir disaproxil fumarate/emtricitabine). He had no symptoms related to the overdose. Results post-overdose: urinalysis: normal; electrolytes and renal: phosphate 0.75, creatinine 94; TDM: 24 hours: 207 ng/ml; 48 hours: 80 ng/ml; 72 hours: 16 ng/ml; 192 hours: 2 ng/ml. There were no serious complications.

Discussion/conclusion The patients in our case series showed few side effects and no serious sequelae as a result of their overdose. There seems to be little guidance available to guide management of such cases.

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