Last time I picked up my prescription for tamoxifen, I happened to examine the pills. I don’t usually do that until I get home, but this time I did, and it was a good thing, because they looked different.
I asked the pharmacist what was going on. It turned out that the contents was tamoxifen, but it was made by a different company. She said “Good thing you noticed. You shouldn’t switch manufacturers. It’s important to keep continuity in your medications, especially one as important as this.”
So…When you take your meds, look them over before you start a new prescription. Especially if you’re getting generic drugs, as mine usually are. Pharmacies often order the same drug from different manufacturers. You want to make sure yours are the same every time you refill.