Related Rule
Russian Federation
Practice Relating to Rule 25. Medical Personnel
The Russian Federation’s Military Manual (1990) states that attacks against medical personnel are a prohibited method of warfare. 
Russian Federation, Instructions on the Application of the Rules of International Humanitarian Law by the Armed Forces of the USSR, Appendix to Order of the USSR Defence Minister No. 75, 1990, § 5(g).
The Russian Federation’s Regulations on the Application of IHL (2001) states: “[P]ersons protected by international humanitarian law include … medical and religious personnel … Attacks against such persons are prohibited.” 
Russian Federation, Regulations on the Application of International Humanitarian Law by the Armed Forces of the Russian Federation, Ministry of Defence of the Russian Federation, Moscow, 8 August 2001, § 1.
The Regulations further specifies:
Enemy medical and religious personnel shall be respected and protected and shall not be made the object of attack, unless such personnel, when checked, have committed acts which go beyond their professional (medical or religious) duties and if they refrain from taking part in hostilities; if the said persons observe the established identification rules … Protection may cease only after a warning has been given setting, whenever appropriate, a reasonable time-limit and after such warning has remained unheeded. 
Russian Federation, Regulations on the Application of International Humanitarian Law by the Armed Forces of the Russian Federation, Ministry of Defence of the Russian Federation, Moscow, 8 August 2001, § 58.
With regard to internal armed conflict, the Regulations states: “Medical and religious personnel shall be respected and protected and shall be granted all available help for the performance of their duties.” 
Russian Federation, Regulations on the Application of International Humanitarian Law by the Armed Forces of the Russian Federation, Ministry of Defence of the Russian Federation, Moscow, 8 August 2001, § 83.
The Russian Federation’s Regulations on the Application of IHL (2001) states: “Military medical personnel may have individual small arms for their own defence and protection of the wounded and sick in their charge.” 
Russian Federation, Regulations on the Application of International Humanitarian Law by the Armed Forces of the Russian Federation, Ministry of Defence of the Russian Federation, Moscow, 8 August 2001, § 1.
The Regulations further states:
Medical transports are allowed to carry individual small arms and ammunition taken from the transported wounded (sick) and shipwrecked as well as individual small arms of the transported military medical personnel. 
Russian Federation, Regulations on the Application of International Humanitarian Law by the Armed Forces of the Russian Federation, Ministry of Defence of the Russian Federation, Moscow, 8 August 2001, § 152.