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A major part of the preparations in this group are combined preparations. Preparations containing e.g. analgesics and antispasmodics could be classified either in this group or in N02 - Analgesics. Combinations of psycholeptics and antispasmodics could be classified in A03 or in N05 - Psycholeptics etc. The main indication for the use of the combination will, together with the relative effect of the active components, decide the classification. In the treatment of pain caused by spasms, the spasmolytic component must be judged as more important than the analgesic component. Accordingly, analgesic/antispasmodic combinations should be classified in A03 if the main effect of the preparation is the antispasmodic action.
Combined preparations are classified in:
A03C - Antispasmodics in combination with psycholeptics
A03D - Antispasmodics in combination with analgesics
A03E - Antispasmodics and anticholinergics in combination with other drugs
Antispasmodics, which are used specifically in the urogenital tractus, are classified in G04BD - Drugs for urinary frequency and incontinence.

Drugs for constipation are classified in A06.
Semisynthetic derivatives such as butylscopolamine, are classified in A03B - Belladonna and derivatives, plain.

Plain preparations for systemic use containing glycopyrronium bromide are classified in this group. Preparations containing glycopyrronium in combination with neostigmine are classified in N07AA51. Trospium see G04BD and A03DA.
Pipenzolate in combination with silicones is classified in A03AB14.

ATC code	Name	DDD	U	Adm.R	Note
A03AB01	benzilone	70	mg	O
A03AB02	glycopyrronium bromide	3	mg	O
		0.3	mg	P
		3	mg	R
A03AB03	oxyphenonium	25	mg	O
A03AB04	penthienate	15	mg	O
A03AB05	propantheline	60	mg	O
		60	mg	P
A03AB06	otilonium bromide
A03AB07	methantheline	0.15	g	O
A03AB08	tridihexethyl	0.125	g	O
A03AB09	isopropamide	10	mg	O
A03AB10	hexocyclium	0.15	g	O
A03AB11	poldine	12	mg	O
A03AB12	mepenzolate	0.1	g	O
A03AB13	bevonium	0.2	g	O
A03AB14	pipenzolate	20	mg	O
A03AB15	diphemanil
A03AB16	(2-benzhydryloxyethyl)diethyl-methylammonium iodide	0.3	g	O
A03AB17	tiemonium iodide
A03AB18	prifinium bromide
A03AB19	timepidium bromide
A03AB21	fenpiverinium
A03AB53	oxyphenonium, combinations

List of abbreviations