The British Pharmacopoeia (BP) was first published in 1864 and is revised every 10 years. It establishes standards for drugs in the UK and Commonwealth countries. The Medicines Act of 1968 gave responsibility for preparing the BP to the Medicines Commission. The BP contains over 2100 monographs including drug substances, formulations, blood products, and appendices. The British Pharmaceutical Codex (BPC) was first published in 1907 and provides additional information to pharmacists and medical practitioners, including drug actions, side effects, and preparation methods. It contains drugs and preparations that are commonly used but not included in the BP.