Dutasteride is FDA-approved for BPH only, so any hair-loss combination described here is off-label use. The most evidence-backed combinations are dutasteride + tamsulosin for BPH (sold in the United States as Jalyn, and as Duodart or Combodart in other markets) and dutasteride + minoxidil for hair loss. Combining dutasteride with finasteride is generally not recommended.
Dutasteride + Minoxidil
The most popular combination for hair loss. Dutasteride addresses the hormonal cause (DHT) while minoxidil stimulates growth through vasodilation. Clinical experience suggests results superior to either alone. Full guide.
Dutasteride + Tamsulosin (Duodart)
The fixed-dose combination for BPH, sold in the United States as Jalyn and as Duodart or Combodart in other markets. In the 4-year CombAT trial it was superior to both monotherapies at reducing BPH clinical progression and symptoms, though not superior to dutasteride alone for acute urinary retention or BPH-related surgery. Dutasteride shrinks the prostate while tamsulosin provides rapid symptom relief. Full guide.
Dutasteride + Finasteride
Generally not recommended. Dutasteride already blocks both 5AR isoforms that finasteride targets, so adding finasteride provides no additional DHT suppression and may increase side effects. Learn why.