Abstract: In an aspect of the invention, serotonin receptor antagonist formulations are provided for subcutaneous, transdermal or intradermal delivery to a subject. In an embodiment, serotonin receptor antagonist formulations include ondansetron or ondansetron-containing formulations. In another embodiment, serotonin receptor antagonist formulations include palonosetron or palonosetron-containing formulations. In another aspect of the invention, microinjection devices are provided for delivering a serotonin receptor antagonist formulation to a subject.

Abstract: A system for the administration of a bisphosphonate to a subject comprises a bisphosphonate formulation and a microinjection device. In an embodiment, the bisphosphonate formulation includes ibandronate sodium. In some cases, the bisphosphonate formulation includes an excipient. The bisphosphonate formulation may be delivered to the subject subcutaneously, transdermally or intradermally.