"Everybody is prescribing it, Doctor" is the weakest sentence in pharma selling.
Research on persuasion found people follow others most when they are unsure, and most of all when those others are like them. So social proof works in a clinic. It just has to be done properly.
- Similar: a GP listens to GPs, a specialist listens to specialists.
- True: only what you know happened. No invented names or numbers.
- Permitted: name a colleague only if he has agreed.
- Specific: "Several GPs in this area start it for new patients" beats "everyone uses it".
A doctor can smell an exaggeration. The moment he catches one, everything else you say loses weight.
“Social proof works when it is true, similar and specific.”

Lesson 10 of 19 in Step 6: Objections and influence, with the full guide and a checklist for this week.