Anticoagulants or blood thinning therapy
The healthcare provider wants to treat you with an anticoagulant or blood thinner if you are having a serious complication of protein deficiency like a venous thrombosis. If the doctor finds that you have protein deficiency but do not suffer from blood clotting then you are unlikely to need treatment unless under specific circumstances. Anticoagulants or blood thinners that are common in practice include warfarin, heparin, apixaban, dabigatran, and rivaroxaban. If the doctor chooses warfarin for you then they start heparin initially to avoid any complication like widespread blood clotting including the soft tissues and the skin.
The treatment with blood thinners will carry on for several months or sometimes for the rest of your life depending on the circumstances under which the blood clots occur. If a person has mutation for protein S deficiency but do not suffer from blood clots, the doctor will not want you to have the blood thinner. Instead, the doctor might tell you to take some medicines such as birth control pills that can improve blood clotting. A person might need to take a blood thinner in conditions like undergoing a surgery, being pregnant, having trauma, and not able to move around. If a person is taking warfarin, then he or she needs to undergo the INR blood testing weekly or monthly just be sure that they are getting the adequate dose.
https://www.insider.com/protein-deficiency#:~:text=Treatment,such%20as%20lentils%20and%20beans
https://my.clevelandclinic.org/health/diseases/21877-protein-s-deficiency
https://academic.oup.com/ajcn/article-abstract/5/5/506/4729892?redirectedFrom=fulltext