Evaluation of the tolerance of ceftriaxone by subcutaneous route in patients ≥75 years old in geriatric departments: a prospective observational study.

Objectives: The subcutaneous (SC) route provides an alternative to the IV or oral route for drug administration in the elderly. The benefits of SC administration have been proven for hydration but are still debated for antibiotics because tolerance remains uncertain, especially in the frail geriatric population. Here, we aimed to improve current knowledge concerning the tolerance profile of ceftriaxone SC administration at both the systemic and cutaneous level, as well as in terms of pain.