Broad-spectrum anti-parasitic compound imidacloprid transdermal composition preparation for pets
An anti-parasite and imidacloprid technology, applied in the direction of drug combination, non-active ingredient medical preparations, medical preparations containing active ingredients, etc., to prolong the absorption process and action time, reduce the frequency of administration, and reduce the effect of side effects
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Embodiment 1-12
[0050] Table 1. Example 1-12 formulations.
[0051]
[0052] The preparation method comprises the following steps: dissolving imidacloprid in a prescription amount with an appropriate amount of solvent to prepare solution A; dissolving doramectin in an appropriate amount in a prescription to prepare solution B; taking fenvalerate in a prescription amount for Dissolve an appropriate amount of solvent to make solution C; mix solution A, solution B and solution C, make up the prescribed amount of solvent, add the prescribed amount of penetration enhancer and antioxidant, and use auxiliary agents to make up the volume; Filter through a microporous membrane of 0.22 μm, and fill it after passing the clarity.
experiment example 1
[0054]In vitro transdermal experiment of the compound imidacloprid transdermal combination preparation of Example 1 (containing 12.5% imidacloprid, 0.25% doramectin, and 0.005% fenvalerate).
[0055] 1. Experimental method.
[0056] 1.1. Reagents and instruments.
[0057] The compound imidacloprid transdermal combination preparation was prepared in Example 1, containing 12.5% imidacloprid, 0.25% doramectin, and 0.005% fenvalerate.
[0058] Franz diffusion cell (Sichuan University), BP211D electronic balance (Sartorius company, Germany), JA3003 electronic balance (Shanghai Analytical Instrument Factory), DF-101S collector type constant temperature heating magnetic stirrer (Gongyi City Yuhua Instrument Co., Ltd.), HL-2 constant current peristaltic pump (Shanghai Qingpu Huxi Instrument Factory), QZX-C air bath oscillator (Harbin Dongming Medical Instrument Factory).
[0059] 1.2. In vitro transdermal test method.
[0060] 1.2.1. Preparation of isolated skin: Take a piece o...
experiment example 2
[0085] Comparison of transdermal superiority of compound imidacloprid transdermal combination preparations.
[0086] 1. Experimental method.
[0087] 1.1. Reagents and instruments.
[0088] Compound imidacloprid transdermal combination preparation 1 is prepared in Example 1, containing 12.5% imidacloprid, 0.25% doramectin, and 0.005% fenvalerate; the solvent is benzyl alcohol, and the auxiliary agent is ethanol. The compound imidacloprid transdermal combination preparation comparative preparation 1, comparative preparation 2 and comparative preparation 3 are prepared from comparative example 1, comparative example 2 and comparative example 3 respectively, the solvents are respectively propylene glycol, isopropanol and n-butanol, and the auxiliary agent is ethanol .
[0089] The instrument is the same as Item 1.1 in Example 13.
[0090] 1.2. In vitro transdermal test method.
[0091] With item 1.2 in embodiment 13.
[0092]1.3. Drug assay methods.
[0093] With item 1.3...
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