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Q1. Capsules, what are they and what are the advantages?
In the pharmaceutical industry, capsules refer to solid dosage forms in which the drug is enclosed in a hard or soft soluble container. Capsules are usually administered orally, but occasionally may be administered rectally or vaginally.
Orally administered medications are hands down, the world’s preferred way to take medicines. For developers, oral solid dosage or OSD forms like tablets and capsules remain the preferred administration route due to their cost-effectiveness, relative ease of manufacturing and the wide availability of patient-friendly dosing options.
Capsules are generally made from special film-forming materials (such as gelatin, cellulose, polysaccharides, and pure natural plant starch, etc.), which are used to enclose ingredients in a relatively stable shell, allowing them to be taken orally.
Capsules may also be filled with a range of formulation types including dry powders, semisolids, nonaqueous liquids, and other dosage forms such as beads, mini-tablets, and even mini capsules.
Therefore, various types of capsules, with shells and inner fills made of different materials, are available in the market. Traditional capsules are principally made from gelatin, which is a common ingredient in medicines and food products.
Some Advantages of Capsules
- Capsules are tasteless, odorless, and can be administered easily. Drugs with unpleasant tastes and odors may also be enclosed in tasteless shells to make them more attractive to consumers.
- If properly stored the shells contain 12-15% of moisture which give flexibility and consequently very considerable resistance to mechanical stresses.
- Capsules can accommodate combinations of powders, and physicians may change the dose and combination of a capsule drug according to patient requirements.
- Presentation of a drug in a capsule rather than in tablets, allows quicker submission of a new drug for clinical trials because fewer development problems are involved.
- Other advantages of the capsule include the ability of an effective oxygen barrier and excellent chemical stability, which could improve product stability. For example, components that are unstable, sensitive to temperature, light and heat can be made into capsule forms.
Q2. What are the different types of capsules and what are their components?
Capsules are the dosage forms in which a drug formulation usually in a powder, semisolid, or liquid form is enclosed in a shell. This capsule shell is generally made from gelatin but can be made from other polymers such as hydroxypropyl methylcellulose (vegan capsules), polyvinyl alcohol (PVA), seaweed, or starch.
While there are a wide variety of capsules available in the pharmaceutical industry, hard capsules and soft capsules are the two most prolific capsule types in the market. Softgel capsules and hard gel capsules as well as their corresponding components are explored in detail below.
Softgel Capsules
Soft gelatin capsules, also known as softgels or soft elastic capsules, are hermetically sealed one-piece capsules containing a liquid or a semisolid fill without an air or gas bubble. Softgels consist of two parts: solid capsule (outer shell) and a liquid or semi-solid center (inner fill). There are various softgel contract manufacturers that offer softgel capsule contract manufacturing services.
Softgel capsules offer several advantages such as delivering a liquid matrix designed to solubilize and improve the oral bioavailability of a poorly soluble compound, delivering low and ultra-low doses of a compound, delivering a low melting compound, and minimizing potential generation of dust during manufacturing, etc.
- Some Soft Capsule Outer Shell Ingredients
- Gelatin (e.g. bovine, porcine, piscine)
- Plasticizer (e.g. glycerin, sorbitol)
- Solvent (e.g. water)
- Flavoring agents (e.g. essential oils, sucrose)
- Colorants (e.g. dye, lakes)
- Preservatives (e.g. antioxidant agents, antimicrobial agents)
- Other additives
- Some Soft Capsule Inner Fill Materials
- Oily Mixtures
- Solutions
- Suspensions
Hard Gelatin Capsules
Hard capsules are rigid, cylindrical shells typically made of two parts - the body and the cap - which are filled with dry or liquid ingredients and then specially sealed to prevent leakages. These are one of the oldest forms of the pharmaceutical capsule.
Hard capsules also offer several advantages: they are less expensive, easy to fill, able to meet different demands, have a longer shelf life, are easily digestible, have better bioavailability compared to tablets and allow a better degree of flexibility, amongst several other benefits.
- Some Hard Capsule Outer Shell Ingredients
- Gelatin (e.g. Type A and Type B)
- Colorants (e.g. dye, lakes, mineral colors)
- Opacifiers (e.g. Tio2)
- Plasticizer (e.g. sorbitol, glycerin)
- Preservatives (e.g. propyl and methyl parabens)
- Some Hard Capsule Inner Fill Materials
- Dry powders
- Granules
- Pellets
Some Other Types of Capsules
- Veg Capsule or Vegan Capsule
HPMC capsules or veg capsules are two-piece capsules that serve as vegetarian alternatives to hard gelatin capsules and satisfy certain dietary and cultural needs. HPMC used in veg capsules or vegan capsules is considered safe for normal human consumption.
- Chewable Capsule
Chewable capsules are capsules designed to be chewed to release the active and/or inert ingredients. Chewable capsules are a versatile dosage form offering several advantages including oral drug delivery without the need for water, ease of swallowing, the stability advantages of solid dosage forms, and patient-centric drug delivery.
Q3. What are the different steps involved in manufacturing capsules?
Capsule manufacturing starts with the dispense of raw materials, which then undergoes the process of granulation where sieving is done and various binders are added. This is followed by drying, sizing and blending of the materials.
This material then undergoes capsule filling techniques after which it goes for capsule polishing. After all that the capsules go for primary packaging (e.g. blister packaging) and then secondary packaging.
Manufacturing Capsules - Hard Gelatin Capsules
Hard gelatin capsules are fabricated and supplied empty to the pharmaceutical industry by empty shell suppliers, and are then filled in a separate operation. Manufacturing capsules involves a step by step process that requires strict quality control in the manufacture of hard gelatin capsules.
- Hard Gel Capsule Manufacturing Steps
Step 1: Preparation of gelatin solution (dipping solution)
Step 2: Dip-coating the gelatin solution on to metal pins (moulds)
Step 3: Rotation of the dip-coated pins
Step 4: Drying of the gelatin-coated pins
Step 5: Stripping and trimming
Step 6: Joining of the trimmed capsule shell
Step 7: Printing
Step 8: Developing and preparing the inner fill formulation
Step 9: Capsule filling using manual, semi automatic or automatic filling devices
Step 10: Sealing the filled hard capsules
Step 11: Cleaning and polishing the dry filled capsules
Manufacturing Capsules - Softgels
Soft gelatin capsules are made from a more flexible, plasticized gelatin film than hard gelatin capsules. A softgel consists of a gelatin-based shell surrounding a liquid fill. The shells are a combination of gelatin, water, opacifier, and a plasticizer, such as glycerin or sorbitol. In the encapsulation process, two flat ribbons are manufactured and brought together on a twin set of rotating dies.
- Softgel Capsule Manufacturing Steps
Step 1: Raw material storage and selection
Step 2: Weighing softgel capsule ingredients for inner and outer fills
Step 3: Preparation of inner fill materials
Step 4: Softgel encapsulation (Softgel capsule filling services)
Step 5: Drying
Step 6: Softgel dosage form inspection
Step 7: Soft shell capsule packaging
Step 8: Finished product storage and distribution
Q4. Which are the leading pharma contract manufacturers offering capsules?
Some leading pharma contract manufacturers or capsule contract manufacturers that offer custom formulation and product development services for capsules, capsule filling techniques, (e.g. softgel capsule filling services), softgel capsule contract manufacturing and hard capsule contract manufacturing are noted below.
AbbVie Contract Manufacturing - Capsule Contract Manufacturing
AbbVie Contract Manufacturing, a leading pharma contract manufacturer and developer, offers contract manufacturing of various oral solid dosage forms such as capsules, over-encapsulation, bi-layer tablets, mini and micro tablets, liquids, pellets, granules, etc.
AbbVie Contract Manufacturing manufactures and packages finished drug products, with specific expertise in producing tablets, capsules, liquid-filled capsules, granules, prefilled syringes and oral liquids. Their manufacturing expertise includes tablet coating, spray coating, drying granulation, etc.
Skyepharma - Capsule Filling and Packaging
Skyepharma’s capsule manufacturing capabilities include capsules filled with tablets, granules, pellets, or powders. They offer blister packaging in PVC, PVDC, Aclar, Triplex, etc. and blister packaging services including serialization and aggregation. They also offer custom formulation and product development services for capsules and other dosage forms.
Pfizer CentreOne - Capsule Filling and Packaging
Pfizer CentreOne offers flexible oral solid dose manufacturing with various delivery technologies of capsules such as immediate-release capsules, modified-release capsules, powder-filled capsules, pellet-filled capsules, etc. It also offers other capsule filling and packaging services such as coating, blending, etc.
Polpharma - Hard Capsule Manufacturing
Polpharma is a leading capsule contract manufacturer offering contract manufacturing for various oral solid dosage forms such as hard gelatin capsules (filled with powders, pellets, granules) using various capsule filling techniques, soft gelatin capsules (i.e. softgel capsule contract manufacturing along with softgel capsule filling services), tablets, multilayer tablets, film and sugar coated tablets.
Its site in New Doba, Poland specializes in contract manufacturing dry oral formulations, including producing and packing tablets, coated tablets and hard gelatin capsules, in blisters (blister packaging) and polyethylene containers.
Recipharm AB - Hard Capsule Manufacturing
Recipharm has the capabilities to deliver your project from development through to the manufacture of large commercial batch sizes of tablets, capsules, hard gelatin capsules and powders. It is a leading capsule contract manufacturer offering custom formulation and product development services for capsules and various other dosage forms.
All Suppliers
01
End-to-end drug development, specializing in high-potency softgels and liquids, providing global partners with a competitive advantage.
Pharma Service : Drug Product Manufacturing
CAPSULE CONTRACT MANUFACTURING
Category : Capsule
Sub Category : Hard Capsule
Pharma Service : Drug Product Manufacturing
02
Skyepharma, an Expert and Innovative CDMO Partner for tailor-made solutions in complex oral solids and bioproduction.
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HIGHLY POTENT CAPSULE MANUFACTURING
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Sub Category : High Potency APIs (HPAPIs)
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03
AbbVie CDMO has been working with global companies to develop, manufacture & scale biopharmaceutical products.
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04
Biophore is a research-driven global pharmaceutical company focused on niche APIs for the generic industry.
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LGM Pharma accelerates & optimizes the new product pathway from early development through commercialization.
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Athena Pharmaceutiques is a Partner of Choice for Drug Delivery & Life Cycle Management.
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07
With Fermion, start the journey of your innovative API.
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CYTOTOXIC CAPSULE MANUFACTURING SERVICES
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08
Temad- We think of world-class quality.
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09
FAMAR CDMO- From early development to commercial manufacturing.
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HARD GELATIN CAPSULE MANUFACTURING
Category : Capsule
Sub Category : Hard Capsule
Pharma Service : Drug Product Manufacturing
10
Polfa Tarchomin is a leading Polish pharmaceutical company with 200 year tradition in manufacture and sale of pharmaceutical products.
Pharma Service : Drug Product Manufacturing
HARD GELATIN CAPSULE MANUFACTURING
Category : Capsule
Sub Category : Hard Capsule
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11
Sharp is a global leader in pharmaceutical packaging and clinical trial supply services.
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12
Ethypharm is an international Pharma company with European roots manufacturing and commercializing essential drugs all over the world.
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13
Olpha, a JSC AB City subsidiary, is a leading Baltic firm with 50 years of experience in medicines & chemical pharmaceuticals.
Pharma Service : Drug Product Manufacturing
14
As a CDMO, Mikart offers integrated CDMO services for Solid Dose & Non-sterile Liquid formulations.
Pharma Service : Drug Product Manufacturing
IMMEDIATE & CONTROLLED RELEASE CAPSULES
Category : Capsule
Sub Category : Controlled / Immediate / Modified Release
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15
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
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CONTROLLED & MODIFIED RELEASE CAPSULES
Category : Capsule
Sub Category : Controlled / Immediate / Modified Release
Pharma Service : Drug Product Manufacturing
16
Octavius Pharma has been empowering lives since 1980 by providing quality products like DC granules, APIs and FDFs.
Pharma Service : Drug Product Manufacturing
17
Quotient Sciences- Molecule to Cure. Fast.
Pharma Service : Drug Product Manufacturing
18
Pfizer CentreOne is a global CDMO and a leading supplier of Specialty APIs.
Pharma Service : Drug Product Manufacturing
IMMEDIATE RELEASE CAPSULE MANUFACTURING
Category : Capsule
Sub Category : Controlled / Immediate / Modified Release
Pharma Service : Drug Product Manufacturing
19
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20
Trusted Global CDMO Partner Delivering End-to-End Pharma Manufacturing & Development Solutions.
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HARD CAPSULE CONTRACT MANUFACTURING
Category : Capsule
Sub Category : Hard Capsule
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21
ChemExpress delivers end-to-end CRO & CDMO solutions for small molecules, biologics & novel modalities with ICH-grade quality.
Pharma Service : Drug Product Manufacturing
22
End-to-end drug development, specializing in high-potency softgels and liquids, providing global partners with a competitive advantage.
Pharma Service : Drug Product Manufacturing
23
Skyepharma, an Expert and Innovative CDMO Partner for tailor-made solutions in complex oral solids and bioproduction.
Pharma Service : Drug Product Manufacturing
24
Biophore is a research-driven global pharmaceutical company focused on niche APIs for the generic industry.
Pharma Service : Drug Product Manufacturing
MODIFIED RELEASE CAPSULE MANUFACTURING
Category : Capsule
Sub Category : Modified Release
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25
Athena Pharmaceutiques is a Partner of Choice for Drug Delivery & Life Cycle Management.
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Sub Category : Controlled / Immediate / Modified Release
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26
Ethypharm is an international Pharma company with European roots manufacturing and commercializing essential drugs all over the world.
Pharma Service : Drug Product Manufacturing
CONTROLLED SUBSTANCE CAPSULE MANUFACTURI...
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Sub Category : Controlled Substance
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27
As a CDMO, Mikart offers integrated CDMO services for Solid Dose & Non-sterile Liquid formulations.
Pharma Service : Drug Product Manufacturing
CDMO FOR CONTROLLED SUBSTANCE CAPSULES
Category : Capsule
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NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
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CONTROLLED SUBSTANCE FORMULATIONS
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Sub Category : Controlled Substance
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29
Quotient Sciences- Molecule to Cure. Fast.
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CLINICAL MANUFACTURING OF CAPSULES
Category : Capsule
Sub Category : Clinical Supply
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30
Pfizer CentreOne is a global CDMO and a leading supplier of Specialty APIs.
Pharma Service : Drug Product Manufacturing
31
Trusted Global CDMO Partner Delivering End-to-End Pharma Manufacturing & Development Solutions.
Pharma Service : Drug Product Manufacturing
32
End-to-end drug development, specializing in high-potency softgels and liquids, providing global partners with a competitive advantage.
Pharma Service : Drug Product Manufacturing
33
Ethypharm is an international Pharma company with European roots manufacturing and commercializing essential drugs all over the world.
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HIGH POTENCY CAPSULE CONTRACT MANUFACTUR...
Category : Capsule
Sub Category : High Potency APIs (HPAPIs)
Pharma Service : Drug Product Manufacturing
34
As a CDMO, Mikart offers integrated CDMO services for Solid Dose & Non-sterile Liquid formulations.
Pharma Service : Drug Product Manufacturing
35
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
Pharma Service : Drug Product Manufacturing
36
Trusted Global CDMO Partner Delivering End-to-End Pharma Manufacturing & Development Solutions.
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Sub Category : Controlled Substance
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37
Ethypharm is an international Pharma company with European roots manufacturing and commercializing essential drugs all over the world.
Pharma Service : Drug Product Manufacturing
CONTROLLED & IMMEDIATE RELEASE CAPSULES
Category : Capsule
Sub Category : Controlled / Immediate / Modified Release
Pharma Service : Drug Product Manufacturing
38
As a CDMO, Mikart offers integrated CDMO services for Solid Dose & Non-sterile Liquid formulations.
Pharma Service : Drug Product Manufacturing
HARD CAPSULE CONTRACT MANUFACTURING
Category : Capsule
Sub Category : Hard Capsule
Pharma Service : Drug Product Manufacturing
39
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
Pharma Service : Drug Product Manufacturing
40
Trusted Global CDMO Partner Delivering End-to-End Pharma Manufacturing & Development Solutions.
Pharma Service : Drug Product Manufacturing
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41
Ethypharm is an international Pharma company with European roots manufacturing and commercializing essential drugs all over the world.
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CDMO FOR HARD GELATIN CAPSULES
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42
As a CDMO, Mikart offers integrated CDMO services for Solid Dose & Non-sterile Liquid formulations.
Pharma Service : Drug Product Manufacturing
Pharma Service : Drug Product Manufacturing
43
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
Pharma Service : Drug Product Manufacturing
IMMEDIATE RELEASE CAPSULE FORMULATIONS
Category : Capsule
Sub Category : Immediate Release
Pharma Service : Drug Product Manufacturing
44
Trusted Global CDMO Partner Delivering End-to-End Pharma Manufacturing & Development Solutions.
Pharma Service : Drug Product Manufacturing
IMMEDIATE & MODIFIED RELEASE CAPSULES
Category : Capsule
Sub Category : Controlled / Immediate / Modified Release
Pharma Service : Drug Product Manufacturing
45
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
Pharma Service : Drug Product Manufacturing
46
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
Pharma Service : Drug Product Manufacturing
Pharma Service : Drug Product Manufacturing
47
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
Pharma Service : Drug Product Manufacturing
48
NanoAlvand is the entrance to Global Markets as a trusted Highly Potent Products manufacturer.
Pharma Service : Drug Product Manufacturing
CYTOTOXIC CAPSULES MANUFACTURING
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Sub Category : High Potency APIs (HPAPIs)
Pharma Service : Drug Product Manufacturing
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