副作用

Side effect - medicinal effect, whether therapeutic or adverse, that is secondary to the one intended. Article “副作用” in Japanese Wikipedia has 34.5 points for quality (as of July 1, 2025). The article contains 32 references and 22 sections.

This article has the best quality in Ukrainian Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “副作用”, its content was written by 49 registered users of Japanese Wikipedia and edited by 441 registered Wikipedia users in all languages.

The article is cited 712 times in Japanese Wikipedia and cited 5290 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Japanese): #1875 in October 2003
• Global: #5612 in November 2002

The highest popularity rank from 2008:

• Local (Japanese): #41424 in January 2014
• Global: #37351 in August 2009

There are 22 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Ukrainian (uk) Побічна дія (медицина)		63.8671
2	Spanish (es) Efecto secundario (medicina)		39.6127
3	Chinese (zh) 副作用		37.2446
4	Japanese (ja) 副作用		34.4707
5	English (en) Side effect		31.9484
6	Armenian (hy) Կողմնակի ազդեցություն		29.4034
7	Arabic (ar) أثر جانبي		24.474
8	French (fr) Effet secondaire (médecine)		23.4081
9	Serbian (sr) Kontraindikacija		21.5993
10	Vietnamese (vi) Tác dụng phụ		20.6868

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "副作用" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Side effect		1 901 564
2	Japanese (ja) 副作用		542 968
3	Arabic (ar) أثر جانبي		468 097
4	Portuguese (pt) Efeito colateral		425 704
5	Ukrainian (uk) Побічна дія (медицина)		377 500
6	French (fr) Effet secondaire (médecine)		206 769
7	Dutch (nl) Bijwerking		200 566
8	Persian (fa) اثرات جانبی دارو		187 034
9	Italian (it) Effetto collaterale		168 513
10	Indonesian (id) Efek samping		114 604

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "副作用" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Side effect		7 088
2	Ukrainian (uk) Побічна дія (медицина)		2 757
3	Spanish (es) Efecto secundario (medicina)		1 430
4	Japanese (ja) 副作用		960
5	French (fr) Effet secondaire (médecine)		440
6	Chinese (zh) 副作用		363
7	Portuguese (pt) Efeito colateral		358
8	Arabic (ar) أثر جانبي		280
9	Italian (it) Effetto collaterale		235
10	Dutch (nl) Bijwerking		221

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "副作用" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Side effect		125
2	Japanese (ja) 副作用		49
3	Italian (it) Effetto collaterale		28
4	Chinese (zh) 副作用		27
5	Dutch (nl) Bijwerking		25
6	Persian (fa) اثرات جانبی دارو		24
7	Spanish (es) Efecto secundario (medicina)		21
8	Finnish (fi) Sivuvaikutus		19
9	French (fr) Effet secondaire (médecine)		18
10	Arabic (ar) أثر جانبي		17

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "副作用" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Arabic (ar) أثر جانبي		0
2	Czech (cs) Vedlejší účinek		0
3	English (en) Side effect		0
4	Spanish (es) Efecto secundario (medicina)		0
5	Basque (eu) Albo ondorio (medikuntza)		0
6	Persian (fa) اثرات جانبی دارو		0
7	Finnish (fi) Sivuvaikutus		0
8	French (fr) Effet secondaire (médecine)		0
9	Armenian (hy) Կողմնակի ազդեցություն		0
10	Indonesian (id) Efek samping		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "副作用" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Ukrainian (uk) Побічна дія (медицина)		1 028
2	English (en) Side effect		910
3	Japanese (ja) 副作用		712
4	Italian (it) Effetto collaterale		386
5	Persian (fa) اثرات جانبی دارو		287
6	Czech (cs) Vedlejší účinek		245
7	French (fr) Effet secondaire (médecine)		235
8	Chinese (zh) 副作用		219
9	Arabic (ar) أثر جانبي		190
10	Indonesian (id) Efek samping		142

More...

#	Language	Value
ar	Arabic أثر جانبي
cs	Czech Vedlejší účinek
en	English Side effect
es	Spanish Efecto secundario (medicina)
eu	Basque Albo ondorio (medikuntza)
fa	Persian اثرات جانبی دارو
fi	Finnish Sivuvaikutus
fr	French Effet secondaire (médecine)
hy	Armenian Կողմնակի ազդեցություն
id	Indonesian Efek samping
it	Italian Effetto collaterale
ja	Japanese 副作用
ko	Korean 부작용
nl	Dutch Bijwerking
pl	Polish Skutek uboczny (medycyna)
pt	Portuguese Efeito colateral
sh	Serbo-Croatian Kontraindikacija
sr	Serbian Kontraindikacija
tr	Turkish Yan etki
uk	Ukrainian Побічна дія (медицина)
vi	Vietnamese Tác dụng phụ
zh	Chinese 副作用

Best Rank

Japanese: #41424 01.2014

Global: #37351 08.2009

Best Rank

Japanese: #1875 10.2003

Global: #5612 11.2002

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information