Menopause Home > More Info on Estratest Interactions
Rifamycin antibiotics may cause your body to metabolize the hormones in Estratest too quickly, possibly leading to low levels of Estratest in the body. Although this can make Estratest less effective, it is not a dangerous drug interaction.
St. John's Wort
St. John's wort (a commonly used herbal supplement) may cause your body to metabolize the hormones in Estratest too quickly, which could lead to low levels of Estratest in the body. Although this can make Estratest less effective, it is not a dangerous drug interaction.
If you take medications for an underactive thyroid (hypothyroidism) with Estratest, your healthcare provider may need to increase the dose of your thyroid medication. Your healthcare provider should monitor you and make any necessary dosing adjustments.
Various Antibiotics or Antifungals
Some antibiotic or antifungal medications may decrease the ability of your liver to metabolize Estratest, possibly leading to high levels of Estratest in the body. This can increase the risk of Estratest side effects. Check with your healthcare provider before combining Estratest with certain antibiotics or antifungals.
Warfarin (Coumadin, Jantoven)
Combining Estratest with warfarin may increase your risk of bleeding. Your healthcare provider may need to monitor you more closely and adjust your warfarin dosage, especially when you start or stop Estratest.
It is possible that not every drug interaction with Estratest was discussed in this article. Therefore, you should talk with your pharmacist or healthcare provider about the specific drug interactions that may apply to you.