<unk>  is an antibiotic that is FDA approved for the treatment of moderate-to-severe Pneumocystis carinii pneumonia (PCP) in immunocompromised patients, including patients with the acquired immunodeficiency syndrome (AIDS), who are intolerant of, or are refractory to, trimethoprim-sulfamethoxazole therapy or for whom trimethoprim-sulfamethoxazole is contraindicated. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include hypersensitivity.
Trimetrexate
Vincristine sulfate
Trifluridine
Vidarabine
Idoxuridine
Dihydroergocristine
Levoleucovorin
Lenalidomide