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Useful Abbreviations
Guide to the abbreviations used on the Tocris website
If the item you are looking for is not found on this page, view our pharmacological glossary and peptide nomenclature guide pages for further information.
Routes of drug administration
| 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) |
SI prefixes
| Symbol | Prefix | Factor |
|---|
| T | tera | 1012 |
| G | giga | 109 |
| M | mega | 106 |
| k | kilo | 103 |
| m | milli | 10-3 |
| μ | micro | 10-6 |
| n | nano | 10-9 |
| p | pico | 10-12 |
Greek letters (lower case)
| α alpha | γ gamma | ο omicron | σ sigma |
| β beta | ι iota | ω omega | τ tau |
| χ chi | κ kappa | φ phi | θ theta |
| δ delta | λ lambda | π pi | υ upsilon |
| ε epsilon | μ mu | ψ psi | ξ xi |
| η eta | ν nu | ρ rho | ζ zeta |
Unit Sizes
| μg | Microgram |
| mg | Milligram |
| g | Gram |
| kg | Kilogram |
| l | Litre |
| ml | Millilitre |
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