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Guidelines for ATC classification and DDD assignment - WHOCC

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Combinations with other antihypertensives, see C02N - Combinations of<br />

antihypertensives.<br />

Combined products are otherwise classified at separate 5th levels using<br />

the corresponding 50-series.<br />

C02AB Methyldopa<br />

Combinations with diuretics, see C02LB - Methyldopa <strong>and</strong> diuretics in<br />

combination.<br />

Combinations with Rauwolfia alkaloids <strong>and</strong> diuretics, see C02LA -<br />

Rauwolfia alkaloids <strong>and</strong> diuretics in combination.<br />

Different <strong>DDD</strong>s have been established <strong>for</strong> the various stereoisomeric<br />

<strong>for</strong>ms of methyldopa, because of different potency.<br />

C02AC Imidazoline receptor agonists<br />

Low strength clonidine preparations used in the treatment of migraine<br />

are classified in N02C - Antimigraine preparations.<br />

Combinations with diuretics, see C02LC - Imidazoline receptor agonists<br />

in combination with diuretics.<br />

C02B ANTIADRENERGIC AGENTS, GANGLION-BLOCKING<br />

C02BA Sulfonium derivatives<br />

C02BB Secondary <strong>and</strong> tertiary amines<br />

C02BC Bisquaternary ammonium compounds<br />

C02C ANTIADRENERGIC AGENTS, PERIPHERALLY ACTING<br />

Alpha- <strong>and</strong> beta-blocking agents, see C07AG.<br />

103

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