- HuMax-CD20
- HuMax-CD38
- humidifier
- Hurthle cell neoplasm
- Hycamtin
- Hycamtin Capsules
- hycanthone
- hydatidiform mole
- Hydeltra
- Hydeltrasol
- hydration
- hydrazine sulfate
- Hydrea
- hydrocarbon
- hydrocephalus
- hydrocodone bitartrate
- hydrocortisone
- Hydrocortone
- hydrogen peroxide
- hydrolysis
- hydromorphone
- hydromorphone hydrochloride
- hydronephrosis
- Hydrostat
- hydroureter
- hydroxychloroquine
- hydroxydaunorubicin
- hydroxymethylglutaryl-coenzyme A reductase inhibitor
- hydroxyurea
- hygiene
- Hymorphan
- hyperactivity
- Hyperacute Melanoma
- HyperAcute-Lung Cancer Vaccine
- Hyperacute-Pancreatic Cancer Vaccine
- hyperalimentation
- hyperbaric oxygen
- hypercalcemia
- hyperfractionated radiation therapy
- hyperfractionation
- hyperglycemia
- Hypericum perforatum
- hyperimmune bovine colostrum
- hyperkeratosis
- hypernephroma
- hyperparathyroidism
- hyperplasia
- hypersensitivity
- hypertension
- hyperthermia