Medical Conditions Terminology in Category R

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Rabies Human Diploid Cell Vaccine

Vaccines or candidate vaccines used to prevent and treat RABIES. The inactivated virus vaccine is used for preexposure immunization to persons at high risk of exposure, and in conjunction with rabies immunoglobulin, for postexposure prophylaxis.

Racemetirosine

An inhibitor of the enzyme TYROSINE 3-MONOOXYGENASE, and consequently of the synthesis of catecholamines. It is used to control the symptoms of excessive sympathetic stimulation in patients with PHEOCHROMOCYTOMA. (Martindale, The Extra Pharmacopoeia, 30th ed)

Racemethorphan

The d-isomer of the codeine analog of LEVORPHANOL. Dextromethorphan shows high affinity binding to several regions of the brain, including the medullary cough center. This compound is a NMDA receptor antagonist (RECEPTORS, N-METHYL-D-ASPARTATE) and acts as a non-competitive channel blocker. It is used widely as an antitussive agent, and is also used to study the [...]

Racemethionine

A sulfur containing essential amino acid that is important in many body functions. It is a chelating agent for heavy metals.

Raclopride

A substituted benzamide that has antipsychotic properties. It is a dopamine D2 receptor (see RECEPTORS, DOPAMINE D2) antagonist.

Racket Sport

Games in which players use a racquet to hit a ball or similar type object.

Racism

A preconceived judgment made without adequate evidence and not easily alterable by presentation of contrary evidence.

Racial Stock

Major living subspecies of man differentiated by genetic and physical characteristics. There are four racial groups: Australoid, Caucasoid, Mongoloid, and Negroid.

Rachitis

A condition caused by deficiency of VITAMIN D, especially in infancy and childhood, with disturbance of normal ossification. The disease is marked by bending and distortion of the bones under muscular action, by the formation of nodular enlargements on the ends and sides of the bones, by delayed closure of the fontanels, pain in the [...]

Rachitides

A condition caused by deficiency of VITAMIN D, especially in infancy and childhood, with disturbance of normal ossification. The disease is marked by bending and distortion of the bones under muscular action, by the formation of nodular enlargements on the ends and sides of the bones, by delayed closure of the fontanels, pain in the [...]