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When a document analyst from the CSI TV shows scrutinizes a document found at a crime scene such as a ransom note written by k

According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product

idnappers or their victims, they study not only the handwriting but also the ink in order to determine a paper’s authenticity. Inks

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

that appear similar physically may differ chemically. This distinction helps a criminal scientist determine whether the same ink was

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

used for each word on each page of a document and may even help determine whether a particular ink existed at the time the document

here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

upposedly was written.

One nondestructive technique of ink comparison is called microspectrophotometry. This process allows

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

the examiner to accurately ascertain whether the colors of two inks match by comparing their light transmission, absorption, and refl

ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc

ection characteristics.

Another technique for comparing ink samples in thin-layer chromatography (TLC), which is delineated i

easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi

n four steps:

1. Very tiny samples of the inked paper are removed from the written lines using a thin hollow needle.
2. The tin

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

pieces of paper are then placed into a test tube, and a solvent is added to dissolve the ink.
3. A drop of the solvent containi

and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ

ng the ink solute is then placed on a paper strip along with a few drops of several known control inks.
4. Finally, the strip is

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

dried and subsequently dipped into another solvent that migrates up the paper strip, dragging the inks along with it.

The dista

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

nce that all the inks traveled along the strip are determined by the respective sizes of their molecules. The smaller the ink molecu

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

es the further up the strip it travels. This procedure separates the ink into bands. Whenever inks from two different pages of a do

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

cument in question are tested and they yield different bands, it is safe to conclude that the writing on the two pages was done with

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

two entirely different inks.

A comprehensive ink reference database is located at the Ink Library, a part of the Questioned Document

t?

As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel

Branch of the U.S. Secret Service Forensic Services Division. Furthermore, the U.S. Treasury Department keeps a comprehensive datab

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

se of the TLC patterns of commercial inks. More recently, many ink manufacturers began adding fluorescent-dye tags to their products

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

making them easier to identify. These tags are changed annually so that forensics can easily determine the year that the product wa

.

As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de

s manufactured.

A lot of the methods that are used in the CSI TV shows were drawn from actual laboratory techniques used in a

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

forensics lab. New advances in technology will help bring a crook to justice thus making it harder for him to get away with a crime

tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products

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