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| Dosage | One (1) turn signal activated, three seconds before the maneuver |
| Frequency | Every single lane change, no exceptions |
| Duration | Lifelong |
| Refills | Unlimited — the lever was always there |
The Institute dispenses Signalum Lateralis for:
Signalum Lateralis is part of the Institute Pharmacy's formulary of satirical prescriptions. Everything on this slip is fictional except the behavior it addresses. A real pharmacist, handed this slip, would decline to fill it. Patients are invited to fill it themselves.
Patients know it in practice as Lane-Change Signal, used — the Latin is ceremonial; the English form is what they actually execute.
Need a prescription of your own? Describe your complaint to the Institute Pharmacy. Or browse the full formulary.