functional obsolescence. Impairment of the usefulness of a device or equipment due to a design defect, or due to its inability to be upgraded or modified to serve the user's current needs.efinition. Impairment of the usefulness of a device or equipment due to a design defect, or due to its inability to be upgraded or modified to serve the user's current needs. For example, a relatively new computer becomes functionally obsolete if it cannot run the latest program or peripheral the user wishes to use.
Current US DHHS guidelines (published April 8, 2015) state: 1  Antiretroviral therapy (ART) is recommended for all HIV-infected individuals to reduce the risk of disease progression. 2  ART also is recommended for HIV-infected individuals for the prevention of transmission of HIV.
TRUVADA is a type of medicine called a nucleoside analog reverse transcriptase inhibitor (NRTI) that is used to treat HIV-1 infection in adults and teenagers (12 and older). TRUVADA is a combination therapy because it has 2 medicines in 1 pillâ emtricitabine and tenofovir disoproxil fumarate.TRUVADA is always used with other anti-HIV medicines to treat HIV-1 infection because TRUVADA alone is not a complete treatment. In people taking TRUVADA with other HIV-1 medicines to treat HIV-1 infection, common side effects include: diarrhea, nausea, tiredness, headache, dizziness, depression, problems sleeping, abnormal dreams, and rash.