Abstract: A pharmaceutical composition and methods for using the pharmaceutical composition are disclosed. The pharmaceutical composition may include a therapeutically effective amount of one or more antiviral active pharmaceutical ingredients and a pharmaceutically acceptable excipient. The pharmaceutical composition may be a solid dosage form, wherein the solid dosage form provides sustained release of the antiviral active pharmaceutical ingredient when administered as a vaginal or rectal insert.

Abstract: An improved long-acting injectable depot suspension formulation of LB displaying progestational effects which overcomes the aggregation and physical instability of LB injectable depot products, and also provides a longer duration of action of at least 4 months. Potential uses of this formulation include but are not limited to contraception and treatment or prevention of progestin/progesterone-sensitive reproductive tract dysfunctions and disorders.