Semi-solid dosage forms are pharmaceutical preparations that are partially solid and partially liquid. They have a consistency that is in between solid and liquid, and they are often used for topical application, such as on the skin or in the eyes.

Examples of semi-solid dosage forms include creams, gels, ointments, lotions, pastes, and suppositories.

Creams are a semi-solid emulsion that is typically used for topical application to the skin. They are usually made up of water and oil and can be used to treat a wide range of skin conditions.

Gels are a semi-solid that can be used for topical or systemic administration. They are made up of a liquid and a gelling agent, which gives them their characteristic texture. Gels are often used for the delivery of medicines, such as eye drops or oral gels.

Ointments are a semi-solid preparation that is used for topical application. They are made up of oil and typically do not contain water. Ointments are often used to treat skin conditions, such as eczema.

Lotions are a semi-solid preparation that is used for topical application. They are typically made up of water and oil and can be used to moisturize the skin or treat skin conditions.

Pastes are a semi-solid preparation that is typically used for topical application. They are made up of a solid and a liquid and have a thick and sticky consistency. Pastes are often used to treat skin conditions, such as burns.

Suppositories are a semi-solid that is used for rectal administration. They are typically made up of a solid and a liquid, such as cocoa butter, and can be used to deliver medication, such as laxatives or anti-inflammatory drugs, to the body.