Liposomal Encapsulation Helps Deliver Medications More Effectively

By Jody Leach


Drugs used to fight disease typically target specific physical systems or organs. Intravenous drips and injections are the most directly effective delivery method, transferring those medications directly to the blood. Orally administered drugs face degradation from the substances that accompany normal digestion. Liposomal encapsulation creates a protective bubble that wards off acids, while encouraging absorption.

Medical scientists first became aware of this process than fifty years ago, leading to the development of newer and more effective methods of drug delivery. The process is currently being used during treatment of serious conditions such as stubborn fungal infections, some kinds of cancers, and even age-related conditions leading to loss of vision. While standard medication delivery methods are still predominant, the encapsulation approach is also proving beneficial.

For drugs to survive the upper digestive tract intact, they need to be protected by some kind of barrier that does not cause any additional physical problems. The best solution so far is to create microscopic drug capsules using a material that is already a part of cellular walls throughout the human organism. When activated using one of three primary methods available today, tiny protective liposome bubbles are formed.

They are microscopic, and permit the medication protected inside to safely reach the bloodstream via the small intestine, where they are directly absorbed. This not only improves the overall therapeutic intent in many cases, but can also reduce the possibility of harmful side effects. Not all medications are suitable for this method of delivery, which is most effective with water-soluble drugs.

There are fewer unwanted physical reactions, and immediate advantages for patients. Because lipsomes are biodegradable and always physically compatible, they leave no toxic substances behind. Not only can they survive an attack by harsh digestive acids, but later function as tiny time-release agents within the intestine. Many drugs used to fight cancer can create collateral damage, and this form of delivery provides greater control.

Even though already proven effective through use, there is a slight down side. Production costs are significantly high, but will likely experience a decline as greater demand influences the market. Seal leakage has been reported in some cases, and oxidation sometimes reduces overall effectiveness. During the process some drugs have experienced a decline in their half-life, and stability issues have occurred, but positive benefits still predominate.

The past decade has seen a transition from strictly medical venue to include delivery of nutritional supplements and cosmetic materials. Anecdotal evidence of an increase in physical well-being associated with administering vitamins and minerals in this way are common. Vitamin C has long been touted as a natural way to combat the effects of upper respiratory infections, and this method is said to provide noticeably better results than pills alone.

Although information highlighting consumer ability to create encapsulated vitamins, minerals, and even herbal extracts is readily available, making high-quality formulations can be costly and involved, and will not effectively combat the normal issues associated with aging. As support and development of this process continues in the medical world, the public will benefit most from it being used in conjunction with health regimens that have already been proven effective.




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