Benzylpenicillin of penicillin allergy. Use during pregnancy is generally safe. It is in the penicillin and β-lactam class of medications. Benzylpenicillin was discovered in 1929 by Alexander Fleming and came into commercial use in 1942. It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system. The wholesale cost in the developing world is about US$0.24–2.72 per day. In the United States a course of treatment costs $100–200. As an antibiotic, benzylpenicillin is noted to possess effectiveness mainly against Gram-positive organisms. Some Gram-negative organisms such as "Neisseria gonorrhoeae" and "Leptospira
Dancing on the Valentine Dancing on the Valentine Dancing on the Valentine is a Duran Duran video single released by PMI in the UK and Sony in the US in . It was released on VHS, Beta, Laserdisc, and Video8 (8mm) format. "Dancing on the Valentine" is a collection of the three videos from "Seven and the Ragged Tiger". The title comes from the lyrics of "The Reflex": "You gone too far this time / But I'm dancing on the valentine". The artwork was also highly influenced by the release of "The Reflex" single, earlier in the year. A re-release in 1991 combined "Dancing