PGP (PGCL) is an absorbable monofilament synthetic thread made of poly (glycolide-co-caprolactone) (PGCL) for surgical applications. The absorbable monofilament synthetic threads made of PGCL are available in FD&C Violet No. 2 and meet all requirements of the US Pharmacopoeia (USP) with the exception of the thread size.