Optimization of Thermoreversible In Situ Nasal Gel of Timolol Maleate

Figure 2

IR spectra of (a) timolol maleate, (b) HPMC + PF 27, (c) HPMC, (d) PF 127, and (e) timolol maleate + HPMC + PF 127.

(a)

(b)

(c)

(d)

(e)