The invention discloses a topical pharmaceutical composition containing
timolol and a preparation method thereof, and relates to the technical field of
timolol topical composition;The
raw material of the pharmaceutical composition is composed of
timolol 0.1‑5wt%, white
vaseline 19‑30wt%,
liquid paraffin 46‑54wt%, and
beeswax 17‑22wt%;The preparation method is to take
liquid paraffin,
beeswax, and white
vaseline water bath heating and melting, stirring to obtain a mixture;Then add timolol under a specific constant temperature state, continue to stir;Finally, make after cooling to
room temperature while stirring. The pharmaceutical composition provided by the invention can promote the
active ingredient to penetrate the epidermis (
stratum corneum) and
dermis of the
skin, to provide the
active ingredient of a therapeutically effective amount;More importantly, the generation of impurities in the composition during storage is suppressed, and the time for the
active ingredient to remain stable in the formula is significantly extended.