Abstract: Disclosed are methods and compositions for oral contraception and hormonal therapy. Certain compositions and methods of the invention contain androgens, and preferably methyltestosterone to be combined with estrogen and progestin compositions in a hormonal component of a pharmaceutical composition.

Abstract: Disclosed are compositions comprising viral vectors derived from the paramyxovirus, simian virus 5 (SV5). The SV5 vectors of the present invention are designed so that the HN protein that binds to sialic acid is not expressed, and in certain embodiments a foreign membrane bound protein is expressed on the viral surface that targets the virus to particular cells or tissues. The vector then is able to deliver a toxin or cytotoxic agent to the target cell. Also disclosed are nucleic acid segments useful as viral genomes and methods of producing viral vectors.