The present invention provides new pseudopolymorphic forms of darunavir as well as a novel amorphous form of darunavir, pharmaceutical compositions comprising these compounds, methods for their preparation and use thereof in treating retroviral infections, in particular, HIV infection. Detection of the trigger causes performance of a power-saving action. Consumers can visit the website indicated on the sign and view the posted information for a particular good or service by reference to a unique identifier, such as an identification number, listed on the sign.