- Barbiturates
- Beck Depression Inventory
- Behavior modification
- Bender Gestalt Test
- Benztropine
- Beta blockers
- Bibliotherapy
- Binge eating
- Biofeedback
- Biperiden
- Bipolar disorder
- Bipolar disorders
- Body dysmorphic disorder
- Bodywork therapies
- Borderline personality disorder
- Brain
- Breathing-related sleep disorder
- Brief psychotic disorder
- Bulimia nervosa
- Bupropion
- Buspirone
