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 : 10 / 12 / 2025
In stock
Manufacturer : 1 year for Classification of ointments by type of dispersed systems

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.

Order status tracking

Roman Tsibulsky +79853643808 now online

Joseph
Today we were promised delivery of a blister machine for MN-14 tablets and capsules, remember us ? No one's called us back. 28/12/2025 07:48

Roman Tsibulsky
Hello Joseph, Our manager Natalya the day after tomorrow will dial the driver, also we ask you yourself to the transportation company. 28/12/2025 07:52

Noah
Roman hello, what about the automatic filling and sealing machine for sterile ampoules ABF-4D-1, invoice #101. 28/12/2025 07:58

Roman Tsibulsky
Good afternoon, Noah! We are making a request to the manufacturer. Tomorrow we will send photos and video of testing to your e-mail. 28/12/2025 08:02

Ethan
Good afternoon, I am hoping tomorrow by lunchtime to get the UNIC 600A Tablet Press in Stavanger ! Please comment. 28/12/2025 08:08

Roman Tsibulsky
Good day, Ethan! Our manager has communicated with the delivery service, the equipment will be delivered to Stavanger at your address. Please let us know when you receive it. 28/12/2025 08:09

Logan
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? 28/12/2025 08:18

Roman Tsibulsky
Logan, 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. 28/12/2025 08:21

Sofia
Good afternoon, we have contracted you to deliver a GK-40 dry powder granulator to Geneva, do you deliver to the terminal or to the actual address? 28/12/2025 08:28

Roman Tsibulsky
Hello Sofia, we ship all over Europe and the US including to Geneva . The price in the catalog includes any delivery our customer asks for. 28/12/2025 08:32

Penelope
Horizontal granulator for organic fertilizers JU-80, the price is up to date ? Delivery time to Sofia? Urgent. 28/12/2025 08:38

Roman Tsibulsky
Penelope, Please read carefully the description of this model in our catalog. Prices are current. Timing 1-1.5 months. 28/12/2025 08:39

Owen
Waiting for delivery to Leicester of a TR-02 hard gelatin capsule polishing machine. What about it? 28/12/2025 08:48

Roman Tsibulsky
Hello Owen, on your order we inform you that in the interval from 14:00-16:00 the driver will contact you to clarify the time and place of unloading. 28/12/2025 08:50

Sebastian
Roman hello, what about the automatic filling and sealing machine for sterile ampoules ABF-4D-1, invoice #101. 28/12/2025 08:58

Roman Tsibulsky
Good afternoon, Sebastian! We are making a request to the manufacturer. Tomorrow we will send photos and video of testing to your e-mail. 28/12/2025 09:00

Noah
Natalia hello, what about the counter table tablets and capsules counter TC-10, account #121. 28/12/2025 09:08

Roman Tsibulsky
Hello Noah, Our manager Natalia after lunch will call you on WhatsApp. I see the tracking status, on the carrier's website, the shipment will arrive to St. Gallen in 15 days. 28/12/2025 09:12

Aubrey
YR-90 dry and wet powder granulator YR-90 month has already passed. Hurry up the factory. 28/12/2025 09:18

Roman Tsibulsky
Aubrey, good afternoon. The factory has shipped your equipment to our representative, now is forming a consolidated shipment for shipment to customs. We will keep you informed. 28/12/2025 09:20