There's really no such thing as a "usual" dose for most medications. Your doctor determines the dosage based on a number of factors, such as age, weight, other medications you are taking, other illnesses or conditions you may have, which particular symptom or illness the medication is being used for, etc. Another factor considered is the form of the medication, i.e. tablet or capsule, extended release, liquid or injectable.
If you'll go to Epocrates.com and type naproxen in the search box, you'll find the minimum and maximum recommended dosages for the various conditions naproxen has been approved by the FDA to treat.
I hope this gives you the information you're looking for.
Karen
Important:
We hope you find this general health information helpful. Please note however, that this Q&A is meant to support not replace the professional medical advice you receive from your doctor. No information in the Answers above is intended to diagnose or treat any condition. The views expressed in the Answers above belong to the individuals who posted them and do not necessarily reflect the views of The HealthCentral Network. The HealthCentral Network does not review or edit content posted by our community members, but reserves the right to remove any material it deems inappropriate.