6. Global Over-the-Counter Drug Market by Region 2018-2024 6.1. North America 6.1.1. North America Over-the-Counter Drug Market by Route of Administration 6.1.2. North America Over-the-Counter Drug Market by Therapeutic Class 6.1.3. North America Over-the-Counter Drug Market by Country 6.2. Europe 6.2.1. Europe Over-the-Counter Drug Market by Route of Administration 6.2.2. Europe Over-the-Counter Drug Market by Therapeutic Class 6.2.3. Europe Over-the-Counter Drug Market by Country 6.3. Asia-Pacific 6.3.1. Asia-Pacific Over-the-Counter Drug Market by Route of Administration 6.3.2. Asia-Pacific Over-the-Counter Drug Market by Therapeutic Class 6.3.3. Asia-Pacific Over-the-Counter Drug Market by Country 6.4. RoW 6.4.1. RoW Over-the-Counter Drug Market by Route of Administration 6.4.2. RoW Over-the-Counter Drug Market by Therapeutic Class