Search on: SPERMATOGENESIS-BLOCKING AGENTS 
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Descriptor English:   Spermatogenesis-Blocking Agents 
Descriptor Spanish:   Bloqueadores de Espermatogénesis 
Descriptor Portuguese:   Bloqueadores de Espermatogênese 
Synonyms English:   Agents, Spermatogenesis Blocking
Agents, Spermatogenesis-Blocking
Spermatogenesis Blocking Agents  
Tree Number:   D27.505.696.138.760
D27.505.696.875.360.443.068.760
D27.505.954.705.360.443.068.760
D27.888.569.071.760
Definition English:   Chemical substances which inhibit the process of spermatozoa formation at either the first stage, in which spermatogonia develop into spermatocytes and then into spermatids, or the second stage, in which spermatids transform into spermatozoa. 
Indexing Annotation English:   consider also SPERMATOGENESIS /drug eff & ANTISPERMATOGENIC AGENTS
History Note English:   94; was SPERMATOGENESIS BLOCKING AGENTS 1975-93 
Allowable Qualifiers English:  
AD administration & dosage AE adverse effects
AG agonists AN analysis
AI antagonists & inhibitors BL blood
CF cerebrospinal fluid CS chemical synthesis
CH chemistry CL classification
EC economics HI history
IM immunology IP isolation & purification
ME metabolism PK pharmacokinetics
PD pharmacology PO poisoning
RE radiation effects ST standards
SD supply & distribution TU therapeutic use
TO toxicity UR urine
Record Number:   31780 
Unique Identifier:   D013092 

Occurrence in VHL: 		 

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