| Route |
Abbreviation |
Description |
| Intracerebroventricular |
i.c.v. |
Into the ventricles of the brain |
| Intra-arterial |
i.a. |
Into the lumen of an artery |
| Intracerebral |
i.c. |
Into the brain |
| Intradermal |
i.d. |
Into the dermal layer of the skin |
| Intramuscular |
i.m. |
Into a skeletal muscle |
| Intragastric |
i.g. |
Into the stomach |
| Intraperitoneal |
i.p. |
Into the peritoneal cavity |
| Intrathecal |
i.t. |
Into the spinal canal |
| Intravenous |
i.v. |
Into a vein |
| Oral |
p.o. |
By mouth |
| Subcutaneous |
s.c. |
Under the skin |
| Topical |
– |
Onto the surface, such as the skin or the eye |
| Systemic |
– |
In the periphery (not in the CNS) |
