Journal
JOURNAL OF PHARMACEUTICAL SCIENCES
Volume 105, Issue 8, Pages 2255-2259Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.xphs.2016.05.029
Keywords
subcutaneous injection; injection volume; injection pain; combination products; hypodermis; health care
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Administration into the subcutaneous (SC) tissue is a typical route of delivery for therapeutic proteins, especially for frequent treatments, long-term regimens, or self-administration. It is currently believed that the maximum volume for SC injections is approximately 1.5 mL. Larger SC injection volumes are considered to be associated with injection pain and adverse events at the injection site. However, no controlled clinical studies and actual evidence exist to support this assumption. In this review, we discuss current and publically available data related to SC administration volumes. We conclude that injection volumes higher than 3.5 mL are worth exploring if required for the development of efficacious drug treatments. Studying tissue back pressure, injection site leakage, local tolerability, and injection-related adverse events, such as injection pain, should be considered for the development of higher SC injection volumes. (C) 2016 American Pharmacists Association (R). Published by Elsevier Inc. All rights reserved.
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