An inhalation composition for the treatment of bacteria related diseases is provided. The disclosed composition may include a mixture of three or more API(s) and a micronized poloxamer composition. Micronized poloxamer composition may include poloxamer 188 and poloxamer 407. According to an embodiment, an inhalation composition including one or more APIs may be delivered to the respiratory tract by employing inhalation devices, such as inhalers and nebulizers. Antibiotic inhalation composition may provide improved solubility and bioavailability for three or more API(s), such as levofloxacin, betamethasone, and clindamycin. Furthermore, the synergistic effect of micronized poloxamer composition may provide improved solubility and bioavailability of any suitable API.
