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Guidelines for ATC classification and DDD assignment - WHOCC

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The group is subdivided according to chemical structure.<br />

For some of the substances, different dosage <strong>for</strong>ms are given<br />

different <strong>DDD</strong>s, due to differences in bioavailability.<br />

R06AA Aminoalkyl ethers<br />

Combinations with codeine are classified in N02AA.<br />

Combinations of cinnarizine <strong>and</strong> diphenhydramine teoclate<br />

(dimenhydrinate) are classified in N07CA - Antivertigo preparations.<br />

Different <strong>DDD</strong>s are established <strong>for</strong> the two salts of<br />

diphenhydramine (<strong>ATC</strong> code R06AA02): -chloride <strong>and</strong><br />

-teoclate (dimenhydrinate).<br />

R06AB Substituted alkylamines<br />

R06AC Substituted ethylene diamines<br />

R06AD Phenothiazine derivatives<br />

R06AE Piperazine derivatives<br />

Cinnarizine <strong>and</strong> flunarizine are classified in N07C - Antivertigo<br />

preparations.<br />

R06AK Combinations of antihistamines<br />

R06AX Other antihistamines <strong>for</strong> systemic use<br />

R07 OTHER RESPIRATORY SYSTEM PRODUCTS<br />

R07A OTHER RESPIRATORY SYSTEM PRODUCTS<br />

This group comprises lung surfactants <strong>and</strong> respiratory stimulants.<br />

Caffeine is classified in N06B - Psychostimulants, agents used <strong>for</strong><br />

ADHD <strong>and</strong> nootropics. See also comments under R07AB - Respiratory<br />

stimulants.<br />

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