Inclusion Criteria
Patients must have the following:
- Diagnosis of PCP.
- Fit the CDC definition of AIDS.
- Be receiving intravenous or oral trimethoprim / sulfamethoxazole (Bactrim, Septra) in doses of = or > 15mg/kg/day of the trimethoprim component.
- Be receiving = or < 48 hours of trimethoprim / sulfamethoxazole (TMP / SMX) prior to randomization.
- Must sign informed consent in accordance with FDA guidelines.
Exclusion Criteria
Co-existing Condition:
Patients with the following conditions or symptoms are excluded:
- Cannot take oral medications.
- Require continued administration of anticonvulsant agents such as phenytoin, phenobarbital or primidone.
Concurrent Medication:
Excluded:
- Continued administration of anticonvulsant agents such as phenytoin, phenobarbital or primidone.
Patients with the following are excluded:
- Cannot take oral medications.
- Require continued administration of anticonvulsant agents such as phenytoin, phenobarbital or primidone.
Prior Medication:
Excluded:
- > 48 hours of trimethoprim / sulfamethoxazole prior to randomization.