Academic journals, texts and databases

BioMedSearch
British National Formulary 
Directory of Open Access Journals 
Free full text medical journals online
National Library of Medicine - Medline Plus  
PubMed 
The Merck Manuals 
 

Medicines regulation

European Medicines Agency
Food and Drug Administration 
Malta Medicines Authority
 

Pharmacokinetic resources

Pharmacokinetic Resource Page: David Bourne, University of Oklahoma

Societies and organisations

American Thoracic Society
British Pharmacological Society
European Association for Clinical Pharmacology and Therapeutics (EACPT)
European Federation for Pharmaceutical Sciences
European Respiratory Society
International Bureau for Epilepsy
International League Against Epilepsy 
The Federation of European Pharmacological Sciences
The International Union of Basic and Clinical Pharmacology   

Miscellaneous

The NLM style guide for authors, editors and publishers