In addition, it also means that they would not be allowed to take other medications, and they would be able to only take the generic cialis or viagra without a doctor’s prescription for any of the time they need the medicine, which is a very important part of the decision-making process. It’s important to note that not all tamoxifen prescription drug products that are sold at pharmacies are made with tamoxifen, and in many instances, the tamoxifen may be the active ingredient used in the medicine and not the estrogen that was the original active ingredient. The effects of this drug are similar to those of prozac.