Propylhexedrine/Summary
		
		
		
		
		
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Tolerance 
     
    
    
		
	
Tolerance  
    
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- Full tolerance is reached rapidly develops with prolonged and repeated use
- Decreases to half after 3 - 7 days
- Returns to baseline after 1 - 2 weeks
- Cross-tolerance with all dopaminergic stimulants