IN
Intranasal
What IN stands for
IN is a medical abbreviation for intranasal. TermDecode files it under route abbreviations.
Risk
ISMP lists IN as error-prone: intranasal may be mistaken as IM or IV.
Safer Alternative
Write "intranasal"
Seen in context
IN route misread as IM or IV
Sources
The risk description and safer alternative above are reproduced from these published lists.
All 337 abbreviation pages - meanings, risk notes, safer alternatives and sources - are free and stay free, and so is the printable high-risk abbreviation sheet. Premium is the drilling over the 441-term library: a fresh quiz round whenever you want one rather than replaying today's 10 questions, a fresh 25-card deck aimed at one body system, spelling drills, mastery tracking, and 13 more study sheets.
Other route abbreviations
TermDecode is a study reference for medical terminology and abbreviation safety, not medical advice or clinical guidance. Always defer to your coursework, institutional policy, and licensed professionals.