AboutDr Alan Galbraith Expertise I can answer most questions on most drugs. Answers can be given in either technical or layperson terminology. My main areas of interest are psychiatric, gastrointestinal and cardiovascular drugs.
Experience I have been a university lecturer/head of department for almost thirty years, but am now retired. My research interests were alcohol, smoking and cardiovascular disease.
Organizations Institute of Biology, London.
Publications Author of "Fundamentals of Pharmacology" 5th Edition published in November 2007 by Pearson Education, Australia.
Question Hi I have read your answer and I found the site that I have received the information from. The site is: http://www.medhelp.org/drugs/levonorgestrel/show/4026 So from what info i have form you, the levonorgestrel continues to work after 5 years?
Answer Dear Kendra
Now I understand. What this site is really saying is that they do not advise using this contraceptive for more than 5 years not that it stops working. This to a certain extent is a copout by the manufacturers as the adverse effects may increase after this time. Personally, my opinion is that it is OK to carry on taking this as long as your blood pressure, liver function tests and some other path tests are OK. Most contraception experts are of the same opinion. Therefore i would advise you to speak to your prescriber about this and seek her/his opinion regarding these tests.
