although the prescription product of the present invention may be a delivery system , such as insulin , syringes or a consumable product , such as pills or topical treatments , in the preferred embodiment , the prescription product is a continuous positive airway pressure ( cpap ) kit , shown generally as ( 10 ) in fig1 . the kit ( 10 ) preferably contains instructions ( 12 ) a filter ( 14 ) a blower ( 16 ) and a hose ( 18 ) such as those well known in the art . the kit ( 10 ) also contains a first cpap interface ( 20 ) and a second cpap interface ( 22 ). as shown in fig1 , the first cpap interface ( 20 ) is of the “ nasal mask ” type being provided with a mask ( 24 ) and headgear ( 26 ). the nasal mask ( 24 ) is preferably of a “ universal ” fit type having a malleable triangular cushioned perimeter ( 28 ) which a patient can adjust to make larger or smaller or to more readily fit the patient &# 39 ; s physiology . the second cpap interface ( 22 ) is preferably a nasal canula ( 30 ), such as those known in the art . as nasal canulas ( 30 ) are typically not malleable , the kit is provided with six pairs of interfaces ( 34 ) ( three of which are shown ), ranging from a large interface ( 32 ) to a small interface ( 36 ), preferably provided on a blister pack or other sterile packaging . although in the preferred embodiment , the first cpap interface ( 20 ) is a nasal mask ( 24 ) and the second cpap interface ( 22 ) is preferably a nasal canula ( 30 ), as shown in fig2 - 4 , the cpap interfaces ( 20 ) and ( 22 ) may be of any type known in the art , such as a full face mask ( 38 ), a nasal pillow system ( 40 ) an oral delivery system ( 42 ) or any other type of delivery system known in the art . preferably , both the first cpap interface ( 20 ) and the second cpap interface ( 22 ) are “ universally adaptable ” systems designed to adapt to a large number of patient physiological features . the universally adaptable feature may be the adjustability of the full face mask ( 38 ), the provision of various different sized interfaces for the nasal pillow system ( 40 ), the inherent adaptability to a large number of patients as is the case with the oral delivery system ( 42 ) or any other adaptability feature which reduces the need for a unique , customized interface . the fact that the cpap interfaces ( 20 ) and ( 22 ) are systems designed to adapt to a large number of patient physiological features has a two - fold benefit . first , inventory is reduced as only a single kit is necessary to accommodate a broad range of patients . second , the adaptability aids the patient in adjusting the system to patient &# 39 ; s own physiological features and increases comfort and compliance by reducing the likelihood a patient will end up with an ill fitting or ineffective interface . as shown in fig5 and 6 a , the process of the present invention begins with step ( 44 ), where a patient ( 46 ) visits a physician ( 48 ), who prescribes an overnight sleep study in a sleep lab . the patient ( 46 ) participates in a study wherein data is collected by a sleep technician . the data is later reviewed by the physician ( 48 ) who diagnoses the patient ( 46 ) with a condition , such as obstructive sleep apnea , and prescribes a cpap system for the patient ( 46 ). in step ( 50 ), the patient ( 46 ) contacts a prescription product provider ( ppp ) ( 52 ), such as a durable medical equipment provider and provides the ppp ( 52 ) with the prescription and the patient &# 39 ; s information , including insurance coverage information . in step ( 54 ), the ppp ( 50 ) provides the patient ( 46 ) with the cpap kit ( 10 ), education about use of the cpap kit ( 10 ), an introductory newsletter and a product renewal authorization . the product renewal authorization contains the patient &# 39 ; s information and information regarding the patient &# 39 ; s insurance authorized replenisment cycles . the patient ( 46 ) signs and returns the authorization to the ppp ( 50 ), and takes the cpap kit ( 10 ). in step ( 56 ) the ppp ( 52 ) provides the patient information and delivery date to the product manufacturer ( pm ) ( 58 ) of the kit ( 10 ). in step ( 60 ), the pm ( 58 ) enters the delivery date and patient information into a secure database ( 62 ) and provides the delivery date and patient information to a product fulfillment coordinator ( pfc ) ( 64 ). in step ( 66 ), the pfc ( 64 ) records the patient information and dockets the delivery date ( fig6 a ). using the patient &# 39 ; s insurance coverage information , the pfc ( 64 ) uses the delivery date to docket the dates the patient &# 39 ; s insurance carrier is willing to pay to replace various components of the kit ( 10 ). in step ( 68 ), the pfc &# 39 ; s computerized docket system ( 70 ) reminds the pfc ( 64 ) when it is time to contact the patient ( 40 ). in step ( 70 ), when it is time to contact the patient ( 40 ), the pfc ( 64 ) checks to see if this is the first time the pfc ( 64 ) has contacted the patient ( 46 ). if it is the first time the pfc ( 64 ) has contacted the patient ( 46 ), in step ( 74 ) the pfc ( 64 ) generates and sends the patient ( 46 ) an introductory newsletter ( 76 ) such as the one shown in fig7 a . as shown in fig7 a , the introductory newsletter ( 76 ) contains a postage paid detachable patient introduction postcard ( 78 ) addressed to the pfc ( 64 ). the introductory newsletter ( 76 ) preferably provides information related to the cpap kit ( 10 ). the more valuable this information , the less likely the patient is to discard the introductory newsletter ( 76 ) and the more likely the patient is to read the introductory newsletter ( 76 ). as shown in fig7 b the reverse side of the patient introduction postcard ( 78 ) contains a textual greeting ( 80 ), a response section ( 82 ), for the patient to indicate the patient &# 39 ; s preference of interface , and instructions ( 84 ) for completing and returning the patient introduction postcard ( 78 ). if patient authorization has not already been obtained , the response section ( 82 ) may contain a signature requirement to authorize use of the patient &# 39 ; s medical information . as many statutes require written patient authorization , the instant system has a significant advantage over prior art telephony based systems . the more valuable the information is on the introductory newsletter ( 76 ), the more likely the patient is to fill out and return the patient introduction postcard ( 78 ) which may authorize future contact with the patient and / or additional use of the patient &# 39 ; s information . valuable information on the introductory newsletter ( 76 ), the more the patient will look forward to the next newsletter and the more likely the patient will order additional supplies . the pfc ( 64 ) preferably provides the patient introduction postcard ( 78 ) with a barcode ( 86 ) associated with the patient ( 46 ). by the time the patient ( 46 ) has received the patient introduction postcard ( 78 ), the patient ( 46 ) has had sufficient time to determine a personal preference between the first cpap interface ( 20 ) and the second cpap interface ( 22 ). in step ( 88 ), the patient ( 46 ) records the preferential prescription product on the patient introduction postcard ( 78 ) and mails the patient introduction postcard ( 78 ) to the patient ( 46 ) ( fig6 a and 7b ). in step ( 90 ) the pfc ( 64 ) receives the patient introduction postcard ( 78 ), reads the barcode ( 86 ) with a scanner ( not shown ) such as those well known in the art and records the patient selection on the patient introduction postcard ( 78 ). the pfc ( 64 ) then transmits the information from the patient introduction postcard ( 78 ) to the pm ( 58 ), and records the patient &# 39 ; s preferential prescription product information into the database ( 62 ). after the pfc ( 64 ) has recorded this information into the database ( 62 ) or if in step ( 72 ) it is not the first contact with the patient ( 46 ), the process moves to step ( 92 ) where the pm ( 58 ) checks the patient &# 39 ; s insurance coverage and frequency of replacement of prescription products thereunder and relays this information to the pfc ( 64 ) ( fig5 and 6 a - b ). once , as shown in step ( 94 ), monthly , the pfc ( 64 ) checks its docket system ( 70 ) to determine if it is time to contact the patient ( 46 ). in the event the docket system indicates it is time to contac the patient ( 46 ), the pfc ( 64 ) checks the patient &# 39 ; s insurance - driven replenishment rates to determine and customize content in the patient &# 39 ; s newsletter content . if the patient ( 46 ) is due for replenishment of a cpap hose ( 18 ), the newsletter may be customized to extol the dangers of hose failure . the process moves to step ( 96 ) where the pfc ( 64 ) checks to see if the patient &# 39 ; s insurance company ( 98 ) authorizes a new cpap hose ( 18 ) for the patient ( 46 ) at this time period . if , as shown in step ( 100 ), the patient &# 39 ; s insurance company ( 98 ) does authorize a new cpap hose ( 18 ) for the patient ( 46 ) at this time period , the pfc ( 64 ) “ checks ” the box ( 102 ) marked “ hose ” on the detachable patient refill postcard ( 106 ) section of a refill newsletter ( 104 ) provided with by the pfc ( 64 ), such as the one shown in fig8 a . the refill postcard ( 106 ) is preferably postage paid and addressed to the pfc ( 64 ). as shown in fig8 b , the reverse side of the refill postcard ( 106 ) contains a textual greeting ( 108 ), a response section ( 110 ), preferably already filled out by the pfc ( 64 ), instructions ( 112 ) for completing and returning the refill postcard ( 106 ), and a patient signature line ( 114 ) and date line ( 116 ). the pfc ( 64 ) also preferably provides the refill postcard ( 106 ) with a barcode ( 118 ) associated with the patient ( 46 ). as shown in fig6 b and 8b , after the box ( 102 ) has been marked in step ( 100 ), or if the insurance company ( 98 ) does not authorize a new cpap hose ( 18 ) for the patient ( 46 ) at this time period , the process moves to step ( 120 ) where the pfc ( 64 ) checks to see if the patient &# 39 ; s insurance company ( 98 ) authorizes a new cpap filter ( 14 ) for the patient ( 46 ) at this time period . if , as shown in step ( 122 ), the patient &# 39 ; s insurance company ( 98 ) does authorize a new cpap filter ( 14 ) for the patient ( 46 ) at this time period , the pfc ( 64 ) “ checks ” the box ( 124 ) marked “ filter ” on the refill postcard ( 106 ) section of a refill newsletter ( 104 ) ( fig1 , 6 b and 8 a - b ). as shown in fig6 b , after the box ( 124 ) has been marked in step ( 100 ), or if the insurance company ( 98 ) does not authorize a new cpap filter ( 14 ) for the patient ( 46 ) at this time period , the process moves to step ( 126 ) where the pfc ( 64 ) checks to see if the patient &# 39 ; s insurance company ( 98 ) authorizes a new cpap interface for the patient ( 46 ) at this time period . if the patient &# 39 ; s insurance company ( 98 ) does authorize a new cpap interface for the patient ( 46 ) at this time period , the pfc ( 64 ) queries the database ( 62 ) to determine the patient &# 39 ; s preferential prescription product ( 130 ) previously identified by the patient ( 46 ) on the patient introduction postcard ( 78 ) and entered into the database ( 62 ) by the pfc ( 64 ). as shown in step ( 128 ) the pfc ( 64 ) then inserts the name of the patient &# 39 ; s preferential prescription product ( 130 ) on the refill postcard ( 106 ) and “ checks ” the box ( 132 ) adjacent the name of the patient &# 39 ; s preferential prescription product ( 130 ). ( fig1 b and 8 a - b ). as shown in fig6 b - c , after the box ( 132 ) has been marked in step ( 128 ), or if the insurance company ( 98 ) does not authorize a new cpap interface for the patient ( 46 ) at this time period , the process moves to step ( 134 ) where the pfc ( 64 ) checks to see if the patient &# 39 ; s insurance company ( 98 ) authorizes new cpap headgear ( 26 ) for the patient ( 46 ) at this time period . if , as shown in step ( 136 ), the patient &# 39 ; s insurance company ( 98 ) does not authorize new cpap headgear ( 26 ) for the patient ( 46 ) at this time period , the pfc ( 64 ) does not “ check ” the box ( 138 ) marked “ headgear ” on the refill postcard ( 106 ) section of a refill newsletter ( 104 ) ( fig1 c and 8 a - b ). although the foregoing steps may be implemented manually , in the preferred embodiment , the process is automatic , with the pfc ( 64 ) running a central processing unit ( cpu ) ( 140 ) such as those known in the art . as shown in fig5 , the cpu ( 140 ) is coupled to the docket system ( 70 ) and the database ( 62 ). the cpu ( 140 ) is also preferably coupled to a standard color printer ( 142 ). when the docket system ( 70 ) indicates it is time for the patient ( 46 ) to receive correspondence , the cpu ( 140 ) obtains the appropriate information from the docket system ( 70 ) and database ( 62 ) and generates the appropriate newsletter ( 76 ) or ( 104 ) personalized with the patient &# 39 ; s name and other pertinent information ( fig5 and 6 a - d ). the cpu ( 140 ) personalizes the postcard ( 78 ) or ( 106 ), as described above , with the patient &# 39 ; s refill information and encodes the postcard ( 78 ) or ( 106 ) with appropriate postage and the barcode ( 86 ) or ( 118 ) identifying information on the postcard ( 78 ) or ( 106 ). the foregoing steps are , of course , only examples , as the process may be used to refill any number or type of prescription products such as pharmaceuticals , insulin delivery systems , diabetic maintenance supplies or any other prescription products . as shown in step ( 144 ), once the refill newsletter ( 104 ) is prepared , the pfc ( 64 ) mails the refill newsletter ( 104 ) to the patient ( 46 ) ( fig6 c ). in step ( 146 ), the patient ( 46 ) receives the newsletter ( 104 ), detaches the refill postcard ( 106 ), signs and dates it as indicated and mails it back to the pfc ( 64 ). upon receipt of the executed refill postcard ( 106 ), the pfc ( 64 ) checks for proper execution of the postcard ( 106 ) and reads the barcode ( 118 ) into the cpu ( 140 ). if desired , the entire postcard can be scanned in to the database ( 62 ) using optical character recognition software to facilitate the storage , retrieval and transmission of the authorizations contained thereon . in step ( 148 ), the pfc ( 64 ) forwards the order information from the executed refill postcard ( 106 ) to the ppp ( 52 ), which , as indicated in step ( 150 ), forwards the order information on to the pm ( 58 ). upon receipt of the order information , in step ( 152 ) the pm ( 58 ) sends the appropriate refill prescription products directly to the patient ( 46 ) and sends confirmation to the ppp ( 52 ) that the order has been received and product sent . alternatively , the pm ( 58 ) could send the products to the ppp ( 52 ) which , in turn , forwarded the products to the patient ( 46 ). as shown in step ( 154 ), upon notice that the product has been sent , the ppp ( 52 ) forwards the information onto the patient &# 39 ; s insurance company ( 98 ) for reimbursement . as shown in step ( 156 ), upon receipt of the reimbursement request , the patient &# 39 ; s insurance company ( 98 ) reimburses payment to the ppp ( 52 ) ( fig5 and 6 d ). upon receipt of the reimbursement , in step ( 158 ) the ppp ( 52 ) pays the pm ( 58 ). preferably the pm ( 58 ) pays the pfc ( 64 ) based upon volume , independent of receipt of any reimbursement . as shown in step ( 160 ), if the patient ( 46 ) ever decides to try an alternative interface , such as the full face mask ( 38 ), the nasal pillow system ( 40 ), the oral delivery system ( 42 ) or any other system , the patient ( 46 ) in step ( 162 ) indicates to the pfc ( 64 ) that an alternative interface is desired . the indication can be made on the refill postcard ( 106 ), by directly contacting the pfc ( 64 ) or ppp ( 52 ) or by any other desired means . upon receipt of an alternative interface selection preference from the patient ( 46 ) in step ( 164 ), the pfc ( 64 ) inputs the information into the database ( 62 ). in step ( 166 ), the pfc ( 64 ) forwards the alternative interface selection preference information to the ppp ( 52 ), which , as indicated in step ( 163 ), forwards the order information on to the pm ( 58 ). after receipt of the alternative interface selection preference , at the appropriate time , in step ( 170 ) the pm ( 58 ) sends the alternative interface and associated prescription products directly to the patient ( 46 ) and in step ( 172 ) sends confirmation to the ppp ( 52 ) that the alternative interface selection preference has been received and alternative interface and associated prescription products sent . as shown in step ( 174 ), upon notice that the alternative interface and associated prescription products have been sent , the ppp ( 52 ) forwards the information onto the patient &# 39 ; s insurance company ( 98 ) for reimbursement . the process returns to step ( 156 ) where , upon receipt of the reimbursement request , the patient &# 39 ; s insurance company ( 98 ) reimburses payment to the ppp ( 52 ) ( fig5 and 6 d ). upon receipt of the reimbursement , in step ( 158 ) the ppp ( 52 ) again pays the pm ( 58 ). if the patient ( 46 ) dies does not desire an alternative interface , in step ( 160 ), the process moves to step ( 176 ). if the patient dies , or no longer wishes to receive prescription products , or fails to return a predetermined number of refill postcards ( 106 ), the pm ( 58 ) issues a stop delivery order . if as shown in step ( 178 ), a stop delivery order is received , the process terminates in step ( 180 ) and the pm ( 58 ) instructs the pfc ( 64 ) to stop providing newsletters ( 104 ) to the patient ( 46 ). if no stop delivery order is received , however , the process returns to step ( 68 ), where the pfc ( 46 ) awaits the next docket date to prepare and send a newsletter ( 104 ) to the patient ( 46 ). although the invention has been described with respect to a preferred embodiment thereof , it to be also understood that is not to be so limited , since changes and modifications can be made therein which are within the full , intended scope of this invention as defined by the appended claims . for example , it should be noted the ppp ( 52 ), pm ( 58 ) and pfc ( 64 ) may all be a single entity , with the process being automated and with barcode readers automatically entering information from incoming postcards ( 106 ) and automatically sending out newsletters at appropriate intervals . additionally , alternative means of communication may be used , such as instant messaging , electronic mail , text messaging or any other type of textual communication .