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Guidelines for ATC classification and DDD assignment - WHOCC

Guidelines for ATC classification and DDD assignment - WHOCC

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74<br />

The <strong>DDD</strong>s are based on prophylaxis in children.<br />

A11CC Vitamin D <strong>and</strong> analogues<br />

Vitamin D <strong>and</strong> analogues may be regarded as hormones, but are<br />

classified in this group. Calcium homeostasis, see H05.<br />

Paricalcitol <strong>and</strong> doxercalciferol indicated <strong>for</strong> the prevention <strong>and</strong><br />

treatment of secondary hyperparathyroidism are classified in H05BX -<br />

Other anti-parathyroid agents.<br />

The <strong>DDD</strong>s are based on therapeutic use. No <strong>DDD</strong>s are established<br />

<strong>for</strong> ergocalciferol <strong>and</strong> colecalciferol due to great differences<br />

between doses used <strong>for</strong> various indications.<br />

A11D VITAMIN B1, PLAIN AND IN COMBINATION WITH VITAMIN B6<br />

AND B12<br />

Combinations with trace elements are allowed. Other combinations see<br />

A11J - Other vitamin products, combinations.<br />

A11DA Vitamin B1, plain<br />

The <strong>DDD</strong>s are based on treatment of vitamin B1 deficiency.<br />

A11DB Vitamin B1 in combination with vitamin B6 <strong>and</strong>/or vitamin B12<br />

Combinations with vitamin B2 are also allowed in this group.<br />

For vitamin B1 in combination with vitamin B6 <strong>and</strong>/or vitamin B12,<br />

<strong>DDD</strong>s are only established <strong>for</strong> parenteral preparations, based on the<br />

volume of one ampoule. The <strong>DDD</strong>s are given in UDs (1 UD = 1<br />

ml).<br />

A11E VITAMIN B-COMPLEX, INCL. COMBINATIONS<br />

Definition of vitamin B-complex, see A11 - Vitamins.<br />

The group is subdivided:

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