Complex sentence: The first is Acanya, a 1.2% clindamycin phosphate and 2.5% benzoyl peroxide patented by Dow Pharmaceutical Sciences; though because Valeant acquired the rights to Acanya when it bought out Dow Pharmaceutical Science in 2009, it should not be considered a competitor.
Split into simpler sentences: The first is Acanya, a 1.2% clindamycin phosphate ad 2.5% benzoyl peroxide patented by Dow Pharmaceutical Science. Though because Valeant acquired the rights to Acanya when it bought out Dow Pharmaceutical Science in 2009, it should not be considered a competitor.