Terms and Synonyms Searched:
| Terms | Search Results* | Entire Database** |
|---|---|---|
| Synonyms | ||
| Headache | 3 studies | 1,569 studies |
| Cephalalgia | -- | 81 studies |
| Cephalgia | -- | 6 studies |
| Head pain | -- | 10 studies |
| Pain in head | -- | 9 studies |
| Pseudoephedrine | 3 studies | 457 studies |
| Decongestant | 3 studies | 383 studies |
| Ephedrine | 2 studies | 156 studies |
| sudafed | 1 studies | 12 studies |
| Nasal and Sinus | -- | 4 studies |
| Sudogest | -- | 1 studies |
| Unifed | -- | 2 studies |
| -- | No studies found |
| * | Number of studies in the search results containing the term or synonym |
| ** | Number of studies in the entire database containing the term or synonym |