4.6 Review

An updated review on application of 3D printing in fabricating pharmaceutical dosage forms

Journal

DRUG DELIVERY AND TRANSLATIONAL RESEARCH
Volume 12, Issue 10, Pages 2428-2462

Publisher

SPRINGER HEIDELBERG
DOI: 10.1007/s13346-021-01074-6

Keywords

3D printing; Drug delivery systems; Personalized medicine; Polypills; Drug loading

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Digital-based three-dimensional printing (3DP) is a powerful tool for fabricating personalized medicine by creating 3D printed pharmaceutical dosage forms with variable geometry. It has a significant impact on tailoring drug delivery systems for different patients and special populations.
The concept of one size fits all followed by the conventional healthcare system has drawbacks in providing precise pharmacotherapy due to variation in the pharmacokinetics of different patients leading to serious consequences such as side effects. In this regard, digital-based three-dimensional printing (3DP), which refers to fabricating 3D printed pharmaceutical dosage forms with variable geometry in a layer-by-layer fashion, has become one of the most powerful and innovative tools in fabricating personalized medicine to cater to the need of therapeutic benefits for patients to the maximum extent. This is achieved due to the tremendous potential of 3DP in tailoring various drug delivery systems (DDS) in terms of size, shape, drug loading, and drug release. In addition, 3DP has a huge impact on special populations including pediatrics, geriatrics, and pregnant women with unique or frequently changing medical needs. The areas covered in the present article are as follows: (i) the difference between traditional and 3DP manufacturing tool, (ii) the basic processing steps involved in 3DP, (iii) common 3DP methods with their pros and cons, (iv) various DDS fabricated by 3DP till date with discussing few research studies in each class of DDS, (v) the drug loading principles into 3D printed dosage forms, and (vi) regulatory compliance.

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