Blister Packs

Abstract

The present invention relates to a medicament retaining sheet ( 14 ) for a medicament blister pack. In particular, it relates to a medicament retaining sheet which makes it more difficult for a child to release a medicament from the blister pack without making it unduly difficult for the elderly or infirm to remove the medicament. We describe a medicament blister pack retaining sheet ( 14 ) comprising at least one sheet ( 20 ) having points of weakness ( 23, 24 ) defining medicament release zones.

1 . A medicament retaining sheet for a medicament blister pack, said sheet comprising a first sheet having first and second faces and a second sheet having first and second faces, wherein the first face of the second sheet and the second face of the first sheet are opposed and bonded together and wherein the first sheet includes lines of weakness defining a plurality medicament release zones.  
   
   
       2 . A medicament retaining sheet as claimed in  claim 1  wherein the lines of weakness defining medicament release zones comprise a plurality of perforations and/or slits.  
   
   
       3 . A medicament retaining sheet as claimed in  claim 2  wherein the lines of weakness are formed in the first face of the first sheet.  
   
   
       4 . A medicament retaining sheet as claimed in  claim 1  wherein the lines of weakness extend from the first face of the first sheet, through the first sheet and to the second face of said first sheet in at least a portion of each individual medicament release zone.  
   
   
       5 . A medicament retaining sheet as claimed in  claim 1 , wherein said medicament retaining sheet comprises a laminate.  
   
   
       6 . A medicament retaining sheet as claimed in  claim 1  wherein at least portions of the second face of the second sheet are provided with a permanent adhesive.  
   
   
       7 . A medicament retaining sheet as claimed in  claim 5  wherein the second face of the second sheet is fully coated with a permanent adhesive.  
   
   
       8 . A medicament retaining sheet as claimed in  claim 5  wherein the second face of the second sheet is provided with no permanent adhesive in the medicament release zones.  
   
   
       9 . A medicament retaining sheet as claimed in  claim 1  wherein the second sheet is formed from a metal foil or a metallized plastics material.  
   
   
       10 . A medicament retaining sheet as claimed in  claim 1  wherein the first sheet is formed from a paper material.  
   
   
       11 . A medicament retaining sheet as claimed in  claim 1 , wherein the medicament retaining sheet is for use in the manufacture of a medicament blister pack.  
   
   
       12 . The use of a medicament retaining sheet according to  claim 1  in the manufacture of a medicament blister pack.  
   
   
       13 . A medicament blister pack comprising a medicament retaining sheet according to  claim 1 .  
   
   
       14 . A blister pack as claimed in  claim 13  wherein the medicament tray comprises a molded plastics or metallised metallized tray including a plurality of medicament cavities.  
   
   
       15 . A label for a medicament blister pack comprising a medicament tray having a plurality of molded cavities or recesses each containing a medicant in the form of a capsule or tablet, said capsules or tablets being held in place by means of a retaining sheet, wherein said label has a first and second faces, said first face having an adhesive applied thereto and wherein said label includes lines of weakness defining a plurality of medicament release zones.  
   
   
       16 . A label as claimed in  claim 15  wherein the lines of weakness defining medicament release zones comprise a plurality of perforations and/or slits.  
   
   
       17 . A label as claimed in  claim 15  wherein the lines of weakness extend from the upper surface, through the label, to the lower surface of said label in at least a portion of each individual medicament release zone.  
   
   
       18 . A label as claimed in  claim 15  wherein the lines of weakness are formed in the second face of the label.  
   
   
       19 . A label as claimed in  claim 15  wherein at least portions of the second face of the second sheet are provided with a permanent adhesive.  
   
   
       20 . A label as claimed in  claim 19  wherein no adhesive is applied to the first face in the medicament release zones.  
   
   
       21 . A label as claimed in  claim 15  wherein the first face is fully coated with a permanent adhesive.  
   
   
       22 . A label as claimed in  claim 15  wherein the label is formed from a paper material.