There are all kinds of differences in how groups respond to drugs.
For instance from what i recall people with red hair require more anesthesia but lower doses of opioids for pain relief. And red headed women seem to respond in a unique way to opioids that are also kappa agonists (like pentazocine).
For instance from what i recall people with red hair require more anesthesia but lower doses of opioids for pain relief. And red headed women seem to respond in a unique way to opioids that are also kappa agonists (like pentazocine).