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: 11 / 05 / 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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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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Mateo
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? 30/05/2026 12:42

Roman Tsibulsky
Mateo, 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. 30/05/2026 12:45

William
To what address to send you samples of bottles and caps to send them to the factory ? Regards William. 30/05/2026 12:52

Roman Tsibulsky
Good day, William We received the same question on WhatsApp and replied there as well. Kindly provide the shipment number for tracking purposes. Thank you. 30/05/2026 12:52

Michael
Good afternoon, please confirm that before lunch we will receive our shipment in Helsinki? Contact the transportation company. 30/05/2026 13:02

Roman Tsibulsky
Hello Michael ! Representatives of the transportation company on the delivery status of your shipment said that it will be in Helsinki in a few days. Please expect it. 30/05/2026 13:03

Liam
Good day , Electronic conveyor belt package weight detector DK-05 when will we receive in Barcelona ? 30/05/2026 13:12

Roman Tsibulsky
Hello Liam, your shipment is in the customs warehouse, tomorrow until 14:30 your manager Natalia will contact you. 30/05/2026 13:13

Zoey
For shipping to Luzern do you have to pay anything extra ? 30/05/2026 13:22

Roman Tsibulsky
Good day Zoey, In our catalog, all prices are inclusive of shipping to the customer's door. Delivery to Luzern is included. 30/05/2026 13:25

Jackson
Good day, I want tomorrow until 13:30 to get FF-02 tablet and capsule filling machine in Valletta? 30/05/2026 13:32

Roman Tsibulsky
Good afternoon, Jackson! We have contacted the transportation company, your shipment is arriving in Valletta without delay. Please wait for a call from a representative of Business Lines. 30/05/2026 13:35

Carter
Automatic blister packaging machine for PVC+cardboard LW-35 with delivery to Corpus Christi. We want to track the delivery status. 30/05/2026 13:42

Roman Tsibulsky
Carter, hello. The shipment has already arrived. Now it is in the warehouse of the transportation company. Your manager will contact you to clarify the time of delivery to your city. 30/05/2026 13:43

Aiden
Today we were promised delivery of a blister machine for MN-14 tablets and capsules, remember us ? No one's called us back. 30/05/2026 13:52

Roman Tsibulsky
Hello Aiden, Our manager Natalya before lunch will dial the driver, also we ask you yourself to the transportation company. 30/05/2026 13:54

Penelope
How to contact you for shipment tracking ? Industrial vibrating screen VS-04. 30/05/2026 14:02

Roman Tsibulsky
Good afternoon, Penelope, My WhastApp is +79853643808, Manager Natalia +79153808881 during business hours and except weekends. 30/05/2026 14:03

Evelyn
Horizontal granulator for organic fertilizers JU-80, the price is up to date ? Delivery time to Venice? Urgent. 30/05/2026 14:12

Roman Tsibulsky
Evelyn, Please read carefully the description of this model in our catalog. Prices are current. Timing 1-1.5 months. 30/05/2026 14:14