Paratek Pharmaceuticals, Inc. engages in the development and commercialization of therapies based upon tetracycline chemistry. The company is headquartered in Boston, Massachusetts and currently employs 268 full-time employees. The company went IPO on 2006-05-10. The firm is focused on the development and commercialization of life-saving therapies for life-threatening diseases or other public health threats for civilian, government, and military use. Its commercial product, NUZYRA (omadacycline), is a once-daily oral and intravenous antibiotic for the treatment of adult patients with community-acquired bacterial pneumonia (CABP), and acute skin and skin structure infections (ABSSSI) caused by susceptible pathogens. Its other commercial product SEYSARA (sarecycline), is a once-daily oral therapy for the treatment of moderate to severe acne vulgaris. The Sarecycline is a narrow spectrum tetracycline designed specifically for dermatological use. The company markets omadacycline in the United States as an empiric monotherapy in the indications of ABSSSI and CABP for patients that have both a known or suspected resistant pathogen and at least one significant comorbidity.