The Philippines was a participating site in the multi-country efficacy trials for both the SDM and Two Day Method® (TDM), the long-term follow up of SDM users, and SDM operations research studies. Partners in these efforts included the Department of Health (DOH) at the central and local government levels, Fabella Hospital (a large maternity hospital in Manila), Friendly Care (a fee-for-service NGO) and KAANIB (an agricultural NGO).

Although the Institute terminated country activities in 2002, its local office which was incorporated as a local NGO and registered as IRH Philippines Foundation (IRH/PHI) continues to operate. The foundation generates revenue from training local organizations and providers in natural family planning (NFP) methods. Many private and public health centers still offer SDM to interested clients. The 2004 DHS reports that 10% of currently married women had heard of SDM, and 0.3% are reported as having used it. In addition, SDM figures in national norms and protocols. The Department of the Interior and Local Government issued a memorandum in October 2003 encouraging local government units to introduce SDM into their family planning programs. Furthermore, the Secretary of the Department of Health (DOH) announced at the Population Congress in November 2005 that SDM is part of the DOH’s family planning program. Guidelines for its inclusion in the NFP category have been developed.

• Philippines Country Report: 2002–2007. January 2008. Washington, D.C.: Institute for Reproductive Health, Georgetown University for the U.S. Agency for International Development (USAID) ENG
• The Philippines: Offering the Standard Days Method in a Fee-for-Service Setting, IRH AWARENESS Project Fieldnote ENG