Swine bile phthalate eye drops and preparation method thereof
A technology of bile salts and eye drops, which is applied in the field of medicine, can solve the problems of limited clinical application, high price, and limited sources of bear bile powder, and achieve the effects of less toxic side effects, less irritation, and stable performance
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Embodiment 1
[0022] The porcine bile salt eye drops of the present embodiment consists of the following components by weight percentage: 0.1% of porcine bile salt, 0.1% of thickener, 0.6% of sodium chloride, 0.01% of ethyl p-hydroxybenzoate, and the balance It is water for injection; the thickener is sodium hyaluronate;
[0023] The preparation method of described porcine bile salt comprises the following steps:
[0024] Step 1, filter the pig bile, then add 5 times the volume of the filtrate to the filtrate to clarify the saturated lime water, filter with a filter cloth after boiling for 40 minutes;
[0025] Step 2, the pH value of the filtrate boiled and filtered in step 1 is adjusted to 2 with hydrochloric acid, and bile acid is separated out;
[0026] Step 3, wash the bile acid described in step 2 with water, then dissolve the cleaned bile acid in absolute ethanol, filter, add an alkaline solution to the filtrate to adjust the pH value of the filtrate to 9, and adjust the pH value Th...
Embodiment 2
[0030] The porcine bile salt eye drops of the present embodiment is made up of the following components by weight: 3% porcine bile salt, 5% thickening agent, 0.85% sodium chloride, 0.1% ethyl p-hydroxybenzoate, and the balance It is water for injection; the thickener is methyl cellulose;
[0031] The preparation method of described porcine bile salt comprises the following steps:
[0032] Step 1, filter the pig bile, then add 4 times the volume of the filtrate to the filtrate to clarify the saturated lime water, filter with a filter cloth after boiling for 20 minutes;
[0033] Step 2, the pH value of the filtrate boiled and filtered in step 1 is adjusted to 3 with hydrochloric acid, and bile acid is separated out;
[0034] Step 3, wash the bile acid described in step 2 with water, then dissolve the cleaned bile acid in absolute ethanol, filter, add an alkaline solution to the filtrate to adjust the pH value of the filtrate to 10, and adjust the pH value The filtrate is boile...
Embodiment 3
[0038] The porcine bile salt eye drops of the present embodiment is made up of the following components by weight: 0.5% porcine bile salt, 0.5% thickening agent, 0.8% sodium chloride, 0.08% ethyl p-hydroxybenzoate, and the balance It is water for injection; the thickener is carbomer;
[0039] The preparation method of described porcine bile salt comprises the following steps:
[0040] Step 1. Filter the pig bile, then add 4.5 times of the volume of the filtrate to the filtrate to clarify the saturated lime water, and filter it with a filter cloth after boiling for 30 minutes;
[0041] Step 2, the pH value of the filtrate boiled and filtered in step 1 is adjusted to about 2.5 with hydrochloric acid, and bile acid is separated out;
[0042] Step 3, wash the bile acid described in step 2 with water, then dissolve the cleaned bile acid in absolute ethanol, filter, add an alkaline solution to the filtrate to adjust the pH value of the filtrate to about 9.5, and adjust the pH value...
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