Materials in capsules are generally powders or granules that are irritating to the esophagus and gastric mucosa, have a bad taste, are easy to volatilize, and are easy to inhale into the trachea. These medicines are filled into capsules to form a seal, which not only prevents the volatilization of the medicine properties, but also protects the digestive tract and respiratory tract.

Why Do the Capsules Have Two Colors?

The capsule comes in two halves of different colors and can usually be opened to take a half-metered dose.

Due to the capsule preparation process, it is easy to be confused during production. It is necessary to use a two-color shell to facilitate identification.

Distinguish the two parts with different calibers to avoid errors in mass production, resulting in high-speed assembly line failures and wasting a lot of raw materials. 

The purpose of the capsule with a transparent shell is to let the user know whether the inside of the capsule is granules or powder, which is easy to use. In addition, the internal particles or powder of some capsules have changed after deterioration, which is also to remind users to pay attention to whether the inside of the capsule is normal. 

All transparent capsules are indeed available and can be produced. However, as mentioned earlier, the original monochromatic capsules may reduce the production safety factor. If the transparent capsules are used, it is more difficult to identify, which greatly reduces the production safety factor.

Advantages of Making Therapeutic Drugs into Capsules

The medicines made into capsules are convenient to divide the dosage and convenient to take.

The medicine is made into capsules to improve the stability of the medicine and mask the bad smell of the medicine.

The medicine is packed in the capsule shell, forming a sealed environment, avoiding the influence of moisture, air, and light on the medicine. The drug in the capsule is directly filled in the capsule shell in the state of powder or granules, and is not affected by pressure and other factors, so it is quickly dispersed, dissolved and absorbed in the gastrointestinal tract, and its bioavailability will be higher than that of pills, tablets, etc. Dosage form. Generally, the disintegration time of capsules is less than 30 minutes, and the disintegration time of tablets and pills is less than 1 hour.

Enteric-coated capsules can prevent gastric acid from irritating the drug to be absorbed in the intestine, and can delay the release of the drug and perform a targeted release.

Two Main Categories of Capsules

They are soft capsules and hard capsules.

Soft capsules have good sealing properties and can store medicines for a long time.

Hard capsules are made up of two-part capsules, which are not as tight as soft capsules. They are filled with medicinal powder.

What Equipment Are Used to Manufacture Capsules?

Capsule filling machine: used to fill capsules. The medicine powder is filled into the capsule shell through the capsule mold, and finally the capsule is locked. Manual capsule filling machine, semi-automatic capsule filling machine and fully automatic capsule filling machine can be selected according to production needs and cost.

Capsule polishing machine: The capsule polishing machine can remove the powder remaining on the surface of the capsule filling process, making the capsule look more shiny and beautiful.

Capsule counting machine: Capsule counter machine can count the capsules into the bottle to complete the packaging. Pour the capsules into the silo, distribute the capsules evenly on the vibrating plate through the vibration of the vibrating plate, fall into the feeding port, enter the bottle, and complete the capsule by plugging, capping, capping, sealing, and labeling. Of several capsules.