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Signonymous
Sig codes
| Question | Answer |
|---|---|
| orally | po |
| rectally | pr |
| vaginally | pv |
| every day | qd |
| twice a day | bid |
| three times a day | tid |
| before bed | hs |
| before a meal | ac |
| after a meal | pc |
| as needed | prn |
| take one | i |
| take two | ii |
| take three | iii |
| with | c |
| as directed | ud |
| drop | gtt |
| right eye | od |
| left eye | os |
| both eyes | ou |
| right ear | ad |
| left ear | as |
| both ears | au |
| ointment | ung |
| an equal amount of each | aa |
| a quantity sufficient | qs |
| Movement of a drug from dosage formulation to the blood. | Absorption |
| Movement of a drug molecules across membranes by active means. | Active Transport |
| The increase in effect when two drugs of similar actions are taken | Additive Effects |
| The resulting solution when a drug is added to a parenteral solution. | Admixture |
| Drugs that activate receptors to accelerate or slow normal cell function. | Agonist |
| Without water molecules | Anhydrous |
| The relative amount of an administered dose that reaches general circulation and the rate that this occurs. | Bioavailability |
| The comparison of bioavailability between two dosage forms | Bioequivalence |
| A limited list fo approved medications. | Closed Formulary |
| Required on all controlled prescriptions, identifies the prescriber. | DEA Number |