Per os

WikiDoc Resources for Per os
Articles
Most recent articles on Per os Most cited articles on Per os Review articles on Per os Articles on Per os in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Per os Images of Per os Photos of Per os Podcasts & MP3s on Per os Videos on Per os
Evidence Based Medicine
Cochrane Collaboration on Per os Bandolier on Per os TRIP on Per os
Clinical Trials
Ongoing Trials on Per os at Clinical Trials.gov Trial results on Per os Clinical Trials on Per os at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Per os NICE Guidance on Per os NHS PRODIGY Guidance FDA on Per os CDC on Per os
Books
Books on Per os
News
Per os in the news Be alerted to news on Per os News trends on Per os
Commentary
Blogs on Per os
Definitions
Definitions of Per os
Patient Resources / Community
Patient resources on Per os Discussion groups on Per os Patient Handouts on Per os Directions to Hospitals Treating Per os Risk calculators and risk factors for Per os
Healthcare Provider Resources
Symptoms of Per os Causes & Risk Factors for Per os Diagnostic studies for Per os Treatment of Per os
Continuing Medical Education (CME)
CME Programs on Per os
International
Per os en Espanol Per os en Francais
Business
Per os in the Marketplace Patents on Per os
Experimental / Informatics
List of terms related to Per os

Per os (P.O.) is an adverbial phrase meaning literally from Latin "by mouth" or "by way of mouth." The expression is used in medicine to describe a treatment that is taken orally. The abbreviated P.O. is often used on medical prescriptions.

P.O. is also occasionally rendered per orem, which is sometimes corrupted to per oram, both of which also mean "by mouth."

Pronunciation

• British: pər'əoυs
• U.S.: pər'oυs

See Also

• Nil per os
• List of Latin phrases
• Medical prescription