Using the Advanced Search operators + (term inclusion required) and - (term exclusion required) focuses your search and applying filters narrows your result set.
Let's look at some example searches.
| Search Phrase | Results | Filter by | Results after Filtering |
| aspirin tablets | 80,035 |
Physical Form > Tablets Purpose > Drugs |
2,230 |
| +aspirin +tablets | 2,130 |
Physical Form > Tablets Purpose > Drugs |
58 |
| midazolam nasal spray | 72,463 |
Physical Form > Sprays Purpose > Drugs |
106 |
| +midazolam +nasal +spray | 75 |
Physical Form > Sprays Purpose > Drugs |
5 |
| chlorantraniliprole water dispersible granules | 308,505 | Physical Form > Water-dispersible granular materials | 3,025 |
| +chlorantraniliprole +water +dispersible +granules | 32 | ||
| rilpivirine AND dolutegravir NOT bilater tablet | 82,646 | ||
| +rilpivirine +dolutegravir -bilater | 36 | Physical Form > Tablets | 10 |
| silver nanoparticles with collagen | 150,687 | ||
| +silver +nanoparticles +collagen | 1,074 | Physical Form > Nanoparticles | 50 |
| chlorpheniramine effervescent tablets | 47,319 | Physical Form > Pharmaceutical effervescent tablets | 507 |
| +chlorpheniramine +effervescent | 62 | Physical Form > Pharmaceutical effervescent tablets | 15 |