The primary reason to adjust your dosage is when the medication no longer works effectively. If you find that despite taking Tadasoft 40 mg, you’re still experiencing erectile dysfunction or the medication isn’t working as well as it once did, it may be a sign that your dosage needs adjusting. Sometimes, your body may develop a tolerance to the medication over time, or other factors such as diet, exercise, or stress could be affecting its effectiveness. If you notice that your symptoms aren’t improving or if the effects are diminishing, it’s time to consult your doctor.