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The BSCI exam and CCNP certification requires that you be well versed in the basics of IP Version 6, or IPv6. If you're new

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

to IPv6, you'll quickly learn that it's not exactly just two more octets slapped onto an IPv4 address! IPv6 addresses are

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

Examples of combination products may in

uite long, but there are two ways to acceptably shorten IPv6 address expression. To pass the BSCI exam, become a CCNP, and

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

et that all-important understanding of IPv6, you've got to understand these different methods of expressing an IPv6 address.

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

My last IPv6 tutorial discussed zero compression; today we'll take a look at leading zero compression.

Leading zero compre

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

Combination pro

ssion allows us to drop the leading zeroes from every field in the address. Where we could only use zero compression once i

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

an IPv6 address expression, leading zero compression can be used as often as is appropriate. The key with leading zero comp

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

ession is that there must be at least one number left in each field, even if that remaining number is a zero.

You sometimes

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

see books or websites refer to leading zero compression as "dropping zeroes and replacing them with a colon", but that expla

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

nation can be a little confusing, since the blocks are separated with a colon to begin with. You're not really replacing th

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

leading zeroes, you're dropping them.

Let's look at an example of leading zero compression. Taking the address 1234:0000:

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

Following aspects would a

234:0000:1234:0000:1234:0123, we have four different fields that have leading zeroes. The address could be written out as i

dd to the challenges in developing combination products:

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

is, or drop the leading zeroes.

Original format: 1234:0000:1234:0000:1234:0000:0123:1234

With leading zero compression:

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

1234:0:1234:0:1234:0:123:1234

There's no problem with using zero compression and leading zero compression in the same addre

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

s, as shown here:

Original format: 1111:0000:0000:1234:0011:0022:0033:0044

With zero and leading zero compression: 1111::

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

234:11:22:33:44

Zero compression uses the double-colon to replace the second and third block of numbers, which were all zer

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

Professional from academic institutions, pharmaceutical industries, health care indust

es; leading zero compression replaced the "00" at the beginning of each of the last four blocks. Just be careful and take

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

your time with both zero compression and leading zero compression and you'll do well on the exam and in the real world. The

.

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

eys to success here are remembering that you can only use zero compression once in a single address, and that while leading

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

Companies that provide selfless information through particip

ero compression can be used as often as needed, at least one number must remain in each field, even if that number is a zero

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

HTTP = HTML link (for blogs, profiles,phorums):
<a href="http://www.actual.org.ua/article/171189/actual-Cisco-CCNP--BSCI-Exam-Tutorial--Leading-Zero-Compression.html">Cisco CCNP / BSCI Exam Tutorial: Leading Zero Compression</a>

BB link (for phorums):
[url=http://www.actual.org.ua/article/171189/actual-Cisco-CCNP--BSCI-Exam-Tutorial--Leading-Zero-Compression.html]Cisco CCNP / BSCI Exam Tutorial: Leading Zero Compression[/url]

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