- bromodeoxyuridine
- bromovinyl-deoxyuridine
- bronchi
- bronchial
- bronchial adenoma
- bronchial brush biopsy
- bronchial brushing
- bronchial washing
- bronchiole
- bronchiolitis obliterans
- bronchitis
- bronchodilator
- bronchogenic carcinoma
- bronchoscope
- bronchoscopy
- bronchus
- brostallicin
- brostallicin hydrochloride
- broxuridine
- bruceantin
- bryostatin 1
- BSH
- BSI-201
- BTK inhibitor PCI-32765
- buccal mucosa
- budesonide
- budesonide / formoterol fumarate dihydrate inhalation aerosol
- bugbane
- bugwort
- bulk-forming agent
- BUN
- Buphenyl
- bupivacaine
- bupivacaine hydrochloride
- buprenorphine transdermal matrix patch
- bupropion
- bupropion hydrochloride
- burdock
- Burkitt leukemia
- Burkitt lymphoma
- burr hole
- bursitis
- buserelin
- Buspar
- buspirone
- buspirone hydrochloride
- busulfan
- Busulfex
- buthionine sulfoximine
- BVdU pronucleotide analogue NB1011