Abstract: The invention relates to new quinolonecarboxylic acid derivatives which are substituted in the 7-position by an optionally partially hydrogenated azaisoindolinyl ring, to processes for their preparation, and to antibacterial agents and feed additives containing them.

Abstract: Compounds having the formula ##STR1## wherein R is benzyloxycarbonyl or 2-quinolylcarbonyl, and their pharmaceutically acceptable acid addition salts inhibit proteases of viral origin and can be used as medicaments for the treatment of prophylaxis of viral infections in mammals, humans or non-humans.

Abstract: Novel aminoalkylthiodibenzothiepins and related compounds, physiologically tolerable acid addition salts thereof, a method of preparing same, pharmaceutical and veterinary preparations including same and methods of treating by administering same are disclosed. These compounds are useful as antidepressant, analgetic, and anticonvulsant agents.

Abstract: Methods and compositions for blocking various channels and receptors within an organism are provided. For example, two toxins were isolated from the Agelenopsis aperta spider. The first toxin comprised a toxin having a molecular weight of from approximately 5,000 to approximately 10,000. This toxin was found to have an irreversible effect on calcium channels within the central nervous system. A second toxin having a molecular weight of less than about 1,000 was also isolated. This toxin was found to have a reversible blocking effect on calcium channels within the central nervous system and the cardiovascular system.A third toxin was isolated from the Argiope aurantia spider. This toxin was found to have a reversible effect on excitatory amino acid receptors. Finally, a toxin having a molecular weight of from approximately 5,000 to approximately 7,000 daltons was isolated from the Hololena Curta spider. This toxin was found to have an irreversible effect on excitatory amino acid receptors.