“…With advances in formulation design, the complexity of the formulations that are designed to enhance the solubility of insoluble drugs and provide greater stability for concentrated biologicals which tend to undergo aggregation, deamination, denaturation, hydrolysis, or oxidation has also changed dramatically (2)(3)(4). Multiple excipients, agents, and environmental factors have been investigated that can ensure both physical and chemical stability of biopharmaceuticals including the use of small sugars such as trehalose (5,6), dextran (7), surfactants like pluronic, polysorbate (8), and influence of pH, temperature, and ionic strength. Although peptides and proteins have high specificity and potency, in many cases, concerns related to the high dose of proteins with varying viscosities as often concentrated formulations with several hundred milligrams per milliliter are required especially to satisfy the limited volume allowed for subcutaneous injection as often preferred by FDA and patients.…”