Ketamine – Type R

Nasal spray ketamine, often formulated as esketamine (Type S Ketamine), is designed for rapid absorption and quick onset, making it an effective option for treating treatment-resistant depression (TRD) and major depressive disorder with suicidal thoughts. Approved for use in some countries, nasal spray ketamine is commonly administered under medical supervision, as it provides fast relief with controlled dosing. Its convenient delivery method allows for ease of use and minimal invasiveness compared to IV or IM ketamine.