Evaluation of the Interaction Between Acetaminophen and Zidovudine

Exclusion Criteria

Co-existing Condition:

Patients with the following are excluded:

• Severe ongoing opportunistic infection including Pneumocystis carinii pneumonia (PCP), cryptococcal or toxoplasmosis meningoencephalitis, disseminated herpes simplex or herpes zoster. A demonstrated prior sensitivity or an experience of significant adverse effects during prior therapy with the drug to be used in the study.
• Significant diarrhea at entry ( > 1 watery stool/day).

Patients with the following are excluded:

• Severe ongoing opportunistic infection including Pneumocystis carinii pneumonia (PCP), cryptococcal or toxoplasmosis meningoencephalitis, disseminated herpes simplex or herpes zoster. A demonstrated prior sensitivity or an experience of significant adverse effects during prior therapy with the drug to be used in the study.
• Significant diarrhea at entry ( > 1 watery stool/day).

AIDS related complex (ARC) defined as presence of any one of the following within 12 months prior to entry and absence of a concurrent illness or condition other than

HIV infection to explain the findings:

• Fever of > 38.5 degrees C persisting for longer than 3 weeks.
• Involuntary weight loss of > 15 lbs. or > 10 percent of baseline noted in a 120-day period prior to evaluation.
• History of diarrhea (> 2 liquid stools per day) persisting for longer than 1 month but not occurring at entry.
• History of clinical diagnosis of oral candidiasis or hairy leukoplakia. Patients who have AIDS-defined opportunistic infections or tumors.
• Patients eligible for zidovudine under the labeling. A positive HIV antibody test. Exceptions will be made for patients with a previously positive HIV antibody test with progressive disease and patients where virus isolation has been made. A life expectancy of at least 3 months.
• Patients with stable Kaposi's sarcoma, mild herpes infections, mild or stable depression, asymptomatic or mild cytomegalovirus or Epstein-Barr virus infection, or a hepatitis B virus carrier state will be acceptable for study.

Inability to abstain from alcohol or any other drug, including nonprescription medications, during the study period.

History of severe allergic reactions to study medication Currently pregnant or breastfeeding Recent participation in another clinical trial within the last 30 days Presence of uncontrolled medical conditions that could affect safety