Sinotherapeutics is a Chinese pharmaceutical company that has established a drug formulation research and development center that is in line with international standards. The company has technical expertise for various kinds of topical product developments, including gels, ointments, creams, liquid preparations, liquid-filled depot patches, semi-solid-filled matrix patches, and drug-loaded pressure-sensitive adhesive matrix patches. The company’s quality system pilot plant complies with Chinese GMP and US GMP standards.