| Nominativ | cephalalgia, cephalalgia | cephalalgiae, cephalalgiae |
| Genitiv | cephalalgiae, cephalalgiai, cephalalgiai, cephalalgiae | cephalalgium, cephalalgiarum, cephalalgiarum, cephalalgium |
| Dativ | cephalalgiae, cephalalgiae, cephalalgiai, cephalalgiai | cephalalgiabus, cephalalgiis, cephalalgiabus, cephalalgiis |
| Akkusativ | cephalalgiam, cephalalgiam | cephalalgias, cephalalgias |
| Ablativ | cephalalgiad, cephalalgia, cephalalgiad, cephalalgia | cephalalgiabus, cephalalgiis, cephalalgiabus, cephalalgiis |
| Vokativ | cephalalgia, cephalalgia | cephalalgiae, cephalalgiae |
