Issues around the Prescription of Half Tablets in Northern Switzerland: The Irrational Case of Quetiapine

Table 3

Ten most frequently split medications given by active substances (SPC: Summary of Product Characteristics).

Active substance; (original brand name)	Proportion of split tablets [%]				Splitting is explicitly mentioned in the SPC; (yes/no)
	Total (cumulative)	Quarter; 1/4	Half; 1/2	Three-quarter 3/4
Pipamperone (Dipiperon)	15.8	6.2	9.3	0.3	y
Levodopa/decarboxylase inhibitor (Madopar)	10.2 (26.0)	—	10.1	0.1	y
Quetiapine (Seroquel, Sequase)	6.5 (32.5)	0.3	6.2	—	n
Lorazepam (Temesta)	5.1 (37.6)	0.4	4.7	—	y
Mirtazapine (Remeron, generics)	4.3 (41.9)	—	4.3	—	y
Torasemide (Torem, generics)	3.9 (45.8)	2.2	1.2	0.5	y
Zolpidem (Stilnox, generics)	3.2 (49.0)	—	3.2	—	y
Metoprolol (Beloc ZOK, generics)	2.7 (51.7)	—	2.7	—	y
Citalopram (Seropram, generics)	2.7 (54.4)	—	2.7	—	y
Risperidone (Risperdal)	2.6 (57.0)	—	2.6	—	n