Alternating Between Propecia and Other Treatments
Some long-term users of Propecia ponder whether alternating between Propecia and dutasteride will cause better hair growth, or if it will cause them to lose the growth they have already achieved with Propecia. There are two sets of facts to be understood when it comes to alternating between Propecia and other treatments.
First, research shows that once you stop using Propecia, you will begin shedding the hair you gained from the treatment. If you start using Propecia again, you will re-grow that hair, but you will have to start at a lower baseline, and the amount of hair you gain back may not be equal to what you have lost since stopping Propecia.
The second part of this answer to consider is that Propecia may not necessarily have to be taken every day. The serum half life of finasteride is only six hours, but the half life for the tissue is approximated for two days. With this in mind, you may be able to alternate between lower and higher doses of Propecia daily, while still maintaining the same levels of hair. Considering that dutasteride has a tissue half life of five weeks, you may be able to alternate one day’s dose of Propecia with dutasteride once a week.
There has not been enough research in this area to determine the effectiveness of alternating Propecia doses interspersed with dutasteride. Hypothetically, it could be more effective, but we will need definitive research to demonstrate what the quantifiable results are.