СATALOGUE / PHARMACEUTICAL PRODUCTION TECHNOLOGIES / Classification of ointments by type of dispersed systems

Classification of ointments by type of dispersed systems

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СATALOGUE / PHARMACEUTICAL PRODUCTION TECHNOLOGIES / Classification of ointments by type of dispersed systems

Classification of ointments by type of dispersed systems

From the point of view of technology (production cycle), as well as the physicochemical nature of the base and the nature of distribution of drug substances in the base The classification of ointments according to the type of dispersed systems is of greatest importance. According to this classification, homogeneous and heterogeneous ointments are distinguished. Homogeneous ointments are characterized by the absence of interfacial interface between the drug substances and the base. In such ointments, the drug substances are distributed in the base by the type of solution, ie, brought to molecular or micellar dispersibility. Depending on the method of obtaining it can be: ointments-alloys, which are a combination of several fusible mutually soluble components, ointments-solutions, which contain medicinal substances dissolved in the base, extraction ointments obtained by extraction (extraction) of various plant or animal materials melted ointment base or vegetable oil.

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Information updated: 08 / 04 / 2026
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Production: 1 year на оборудование для производства мазей

Model: Classification of ointments

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Since the solutions are not miscible with fatty bases, the resulting ointments are emulsions in which the dispersed medium is usually the ointment base. Most ointment-emulsions contain emulsifiers, so that the ointments are quite highly dispersed and stable. However, there are ointments that are stable only due to the high viscosity of the dispersion medium. In such ointments, the dispersed phase consists of large droplets. Combined (suspension-emulsion) ointments are the most complex multicomponent systems that include simultaneously drug substances soluble in the ointment base, insoluble powdered ingredients and aqueous solutions of drug substances, i.e. systems in which several substances with different physicochemical properties are simultaneously present.

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Articles — A genre of journalism in which the author sets the task of analyzing social situations, processes, phenomena, primarily from the point of view of the regularities underlying them.

Technical specifications

Heterogeneous ointments are characterized by the presence of an interfacial interface between the drug substances and the base. Heterogeneous ointments are two- or multiphase systems. Depending on the nature of the distribution of drug substances in the base heterogeneous ointments are divided into suspension (trituration), emulsion and combined (suspension-emulsion). Suspension (trituration) ointments are systems containing solid powdery drug substances insoluble in the ointment base and distributed in it by suspension type. Suspension ointments contain drug substances insoluble in water and fat.

Additional information

In the form of suspensions are also administered drugs that dissolve in water, but their solutions are caustic and can cause skin irritation and necrotic phenomena (resorcinol, pyrogallol, zinc sulfate, mercury dichloride, segnet salt”). In the suspended state in ointments are also introduced substances that require a significant amount of water for their dissolution (borax, boric acid). Ointments-suspensions may contain one or more drug substances, and each of them has its own interfacial interface. Thus, suspension ointments are two-, three-, and multiphase systems. Emulsion ointments are characterized by the presence of liquid dispersed phase, insoluble in the ointment base and distributed in it as an emulsion.

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James
When purchasing the RY-200 centrifugal type powder granulator, I asked for tests on our powder 17/04/2026 14:01

Roman Tsibulsky
Hello James, Please send 2 kg of your raw material to the address given to you by Natalia. After the test, the engineer will inform you about the results. 17/04/2026 14:03

Emily
In Jurmala ITA-01 tablet and capsule counter, RZ-9 rotary tablet press and manual capsule filling machine. Help when we get it ? 17/04/2026 14:11

Roman Tsibulsky
Good afternoon, Emily! We have received from the factories photos of the equipment after packing. Natalia will forward the photos to you. Delivery time to you is 45-50 days. 17/04/2026 14:14

Savannah
We received our order (BG-150 film coating boiler) in the box there was no spraying nozzle !!! 17/04/2026 14:21

Roman Tsibulsky
Hello Savannah, we checked with the factory. Your nozzle was not received in time for the shipment of the main machine. We will now deliver it to you by DHL express mail. 17/04/2026 14:24

Evelyn
Good day, tell me need delivery in Corpus Christi to the settlement in the distance of 20 km. Can you organize this? 17/04/2026 14:31

Roman Tsibulsky
Evelyn, Good afternoon, please send us an email to info@minipress.ru with the exact name of the equipment model, city, and your coordinates. We will calculate the delivery to you. 17/04/2026 14:35

Mateo
Dear Roman, how are you doing? Our company bought more than a year ago a filling and capping machine for penicillin vials, model XL-10. We got financing this year and want the same machine. Will you give us a discount? 17/04/2026 14:41

Roman Tsibulsky
Mateo, thank you. We're doing great. Of course we will give a discount to the regular customer. Delivery of equipment also in Seattle ? Contact Natalia, she will send the contract and invoice. 17/04/2026 14:45

Emma
Waiting for delivery to Kavala of a TR-02 hard gelatin capsule polishing machine. What about it? 17/04/2026 14:51

Roman Tsibulsky
Hello Emma, on your order we inform you that in the morning the driver will contact you to clarify the time and place of unloading. 17/04/2026 14:54

Ella
Roman, our company bought VL-100 V-shaped powder mixer, but it is not enough for us, can we return it and exchange it for V-300 model? 17/04/2026 15:01

Roman Tsibulsky
Ella, good afternoon. When we corresponded with you, I warned you that this is a model with a small load. Unfortunately we can not pick up the equipment. As an option, we will offer our customers with a discount. 17/04/2026 15:02

Lila
Good afternoon, we have contracted you to deliver a GK-40 dry powder granulator to Reykjavik, do you deliver to the terminal or to the actual address? 17/04/2026 15:11

Roman Tsibulsky
Hello Lila, we ship all over Europe and the US including to Reykjavik . The price in the catalog includes any delivery our customer asks for. 17/04/2026 15:14

William
Run through the order. V-shaped mixer for powders VM-50 and Mechanical tablet press PP-28 are waiting. 17/04/2026 15:21

Roman Tsibulsky
William, Checking delivery status. The shipment is already in Valletta warehouse. Please arrange for pickup. 17/04/2026 15:21

Scarlett
Dear Roman. Deadline (time) I am waiting for your quotation for a machine for removing tablets and capsules from blister packs MB-10 with delivery. 17/04/2026 15:31

Roman Tsibulsky
Hello Scarlett, By the specified time we will send the offer to your e-mail. Now we are waiting for an answer from the transportation company on the delivery time to Bakersfield . 17/04/2026 15:34