Pharmaceutical companies sometimes choose drug names that are spelled or pronounced like other names on the market. Unfortunately, similarly named medications can have very different therapeutic uses. Patients have received incorrect medications due to name confusion, sometimes suffering serious adverse drug events. The same problem occurs with different medications that are packaged in similar ways. Some medications come in multiple strengths from the same manufacturer with exactly the same packaging, with only a small note on the label about the differences in strength. Separating medications so look-alikes and sound-alikes are not near each other helps reduce the chances that they will be mixed up.