Is Alphadol a Vitamin or a Hormone? Understanding Its Unique Role
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                Since its approval for medical use in 1978, the vitamin D analog Alfacalcidol, sold under brand names like Alphadol, has blurred the lines between a vitamin and a hormone. This medication serves as a powerful tool in treating mineral imbalances, but its function is more complex than a simple nutritional supplement.