While it may be tempting for travel convenience, it is strongly advised against putting different pills in the same bottle. From a safety perspective, storing medications together increases the risk of a medication error, where you or a caregiver might accidentally take the wrong pill because they look similar in size or color. Many pills are designed to look different, but at a glance—especially in an emergency or low light—mistakes happen. Furthermore, different medications have specific chemical stabilities; some may be sensitive to moisture or light, and mixing them can lead to chemical interactions or degradation that reduces their effectiveness. Legally, if you are traveling, especially internationally, most countries require that medications be kept in their original pharmacy-labeled containers to prove they are legitimate prescriptions; carrying a "mixed" bottle can lead to your pills being confiscated or even legal trouble at customs. If you must organize, use a dedicated weekly pill organizer that keeps them separated and labeled, and always carry a copy of your prescriptions or a doctor's note to ensure you can identify each medication correctly if questioned.