Anaprox in dysmenorrhea: Reduction of pain and intrauterine pressure

In: American Journal of Obstetrics and Gynecology · 1979 · vol. 135(4) , pp. 455–460 · doi:10.1016/0002-9378(79)90430-7 · PMID:484644 · W1822382444
article OA: closed CC0 ⤵ 7 in-corpus citations
View on OpenAlex View on PubMed View at publisher
AI-generated summary by gemini-2.5-flash-lite, 2026-06-07

This paper investigated the effects of Anaprox on dysmenorrhea, finding that it effectively reduced both pain and intrauterine pressure.

One-sentence paraphrase of the abstract; not a substitute for reading it. No clinical advice. How this works

Abstract

In a double-blind parallel trial, 24 dysmenorrheic women received a single dose of Anaprox (1,100 mg) or placebo. Over the next 2 hours, pain intensity was scored and intrauterine pressure was measured using an immobilized microballoon. At the end of 2 hours, all 11 patients given Anaprox (but only three of the 13 given placebo) experienced complete pain relief (p = 0.0004). The resting intrauterine pressure (IUP) decreased from a mean of 51.4 to 26.8 mm Hg in the Anaprox-treated group, while in the placebo group the mean resting IUP values remained essentially unchanged ( drop from 55.4 to 51.9 mm Hg was observed). This difference between the two treatment groups was statistically significant in favor of Anaprox (p = 0.03). Several patients from each group were given 0.2 mg of ergonovine by intramuscular injection following the 2 hour trial. In both groups, the resting IUP increased within 30 minutes; the corresponding increase in pain intensity was more pronounced, however, in the placebo group. These results support the premise that a decrease in resting IUP is directly linked to the pain-relieving effects of Anaprox.

My notes (saved in your browser only)

Condition tags

dysmenorrhea

Citation neighborhood

Papers in the corpus that this work cites (lower rings, blue) and that cite this one (upper rings, green). Dot size scales with the paper's in-corpus citation count — bigger dot = more influential within the endo/adeno field. Click a dot to open that paper. [ expand to 2 hops ] — adds papers reached through this work's immediate citers/citees. Heavier; up to 60 extra dots.

References (13)

Cited by (7)

SciLite annotations

chemicals 1
ergonovine

Source provenance

openalex
last seen: 2026-06-10T17:14:06.276822+00:00
scilite
last seen: 2026-05-18T04:57:49.680383+00:00
License: CC0 · commercial use OK