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Latanoprost side effects: what 50,007 FDA adverse event reports show

Latanoprost · 1,196 reaction terms · 160,139 drug–reaction co-reports · data 2026-09-14
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Drug class

Prostaglandin Analog

FDA label (Established Pharmacologic Class) · compare the class

Who reports

50,007 reports · 55% serious · 3,179 with death outcome · 61% female

openFDA FAERS counts, all years, deduplication not applied

Used for

Latanoprost ophthalmic solution is indicated for the reduction of elevated intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension. Latanoprost ophthalmic solution is a prostaglandin F 2α analogue indicated for the reduction of elevated intraocular pressure in patients with open-angle glaucoma or ocular hypertension. ( 1 )

FDA label, Indications and Usage

What it is

Latanoprost is a prostaglandin F 2α analogue.

FDA label, Description section

Boxed warning

None in the current label

How to read this page. FAERS is a spontaneous-reporting system: counts are not incidence rates and a signal is not proof of causation. Each reaction below is run through an automated screen — is the term in the FDA label (known), in the indications (the disease being treated), an administrative/coding term, or none of these (unlabeled)? That screen is mechanical text matching, not a causality assessment. The 30 hand-written Bradford Hill assessments are on the causality assessment page. Not medical advice.

Causality screen of the 40 strongest signals

Labeled adverse reaction 3Labeled (related wording) 4Likely indication confounding 5Reporting / coding artifact 4Lab value / disease marker 1Not in label — unassessed 23
What the badges mean

Strongest disproportionality signals

Flagged terms (PRR ≥ 2, χ² ≥ 4, n ≥ 10), ranked by PRR; infinite PRRs (no comparator reports) excluded. The EBGM column is a second, shrinkage-based estimate (MGPS) with its 5th percentile EB05 and the BCPNN IC025; a pair flagged by PRR alone is marked PRR-only and should be read as fragile. The strata column recomputes the PRR on serious reports only (and, for the 300 most-reported drugs, adjusted for age band), and flags pairs whose reports are unusually skewed by sex or come mostly from consumers. Each row also shows the PRR against the other drugs of the same FDA class, which removes most confounding by the condition being treated, and a calibrated p-value: on validation, known non-causes average an ROR of about 2, so significance is judged against that empirical null (✓ = p < 0.05 after calibration). 1,156 further terms are in the interactive explorer. Reaction links open the term's cross-drug page.

Show:
ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Eyelash thickening29131.5
86.6–199.7ROR 131.6 · calibrated p 5e-8 ✓
93.9 EB05 68.6 · IC025 +4.6
3/3 methods agree
vs other Prostaglandin Analogs: PRR 10.1 (6.2–16.5)
Not in label — unassessed♀ 100% (drug 61%)not reported in cached trials
Intraocular pressure fluctuation41115.9
82.0–163.8ROR 116.0 · calibrated p 9e-8 ✓
87.1 EB05 67.0 · IC025 +4.9
3/3 methods agree
vs other Prostaglandin Analogs: PRR 13.5 (8.6–21.0)
Lab value / disease markerserious n=27not reported in cached trials
Intraocular pressure test abnormal12791.8
75.7–111.2ROR 92.0 · calibrated p 3e-7 ✓
74.5 EB05 64.2 · IC025 +5.6
3/3 methods agree
vs other Prostaglandin Analogs: PRR 31.5 (22.7–43.8)
Reporting / coding artifactserious n=89 · 70% consumernot reported in cached trials
Glaucoma surgery4589.7
65.0–123.8ROR 89.8 · calibrated p 5e-7 ✓
71.7 EB05 55.8 · IC025 +4.9
3/3 methods agree
vs other Prostaglandin Analogs: PRR 45.6 (24.1–86.2)
Likely indication confounding
shares a disease stem with the indications wording
serious n=45 · 70% consumernot reported in cached trials
Iris hyperpigmentation3687.9
61.3–126.0ROR 88.0 · calibrated p 7e-7 ✓
70.1 EB05 52.9 · IC025 +4.6
3/3 methods agree
vs other Prostaglandin Analogs: PRR 4.2 (2.9–6.1)
Not in label — unassessed♀ 100% (drug 61%)not reported in cached trials
Product closure removal difficult16482.0
69.4–97.0ROR 82.3 · calibrated p 6e-7 ✓
68.1 EB05 59.8 · IC025 +5.6
3/3 methods agree
vs other Prostaglandin Analogs: only this drug
Reporting / coding artifact♀ 83% (drug 61%) · 100% consumernot reported in cached trials
Steroid dependence13981.9
68.3–98.3ROR 82.2 · calibrated p 6e-7 ✓
67.9 EB05 59.0 · IC025 +5.5
3/3 methods agree
vs other Prostaglandin Analogs: only this drug
Not in label — unassessedserious n=139 · ♀ 15% (drug 61%) · 92% cliniciannot reported in cached trials
Catarrh13877.0
64.2–92.3ROR 77.2 · calibrated p 9e-7 ✓
64.5 EB05 55.9 · IC025 +5.4
3/3 methods agree
vs other Prostaglandin Analogs: only this drug
Not in label — unassessedserious n=138 · ♀ 16% (drug 61%) · 93% cliniciannot reported in cached trials
Growth of eyelashes11369.3
56.8–84.5ROR 69.4 · calibrated p 2e-6 ✓
58.9 EB05 50.3 · IC025 +5.3
3/3 methods agree
vs other Prostaglandin Analogs: PRR 4.1 (3.3–5.0)
Labeled adverse reaction
exact term
serious n=44 · 75% consumernot reported in cached trials
Intraocular pressure increased (raised eye pressure)1,78667.7
64.4–71.1ROR 70.2 · calibrated p 1e-6 ✓
58.3 EB05 56.0 · IC025 +5.8
3/3 methods agree
vs other Prostaglandin Analogs: PRR 17.9 (16.7–19.3)
Likely indication confounding
term in indications
serious PRR 65.8not reported in cached trials
Product dropper issue9456.0
45.1–69.4ROR 56.1 · calibrated p 8e-6 ✓
48.9 EB05 41.2 · IC025 +5.0
3/3 methods agree
vs other Prostaglandin Analogs: PRR 14.1 (10.5–19.0)
Reporting / coding artifactserious n=32not reported in cached trials
Intraocular pressure decreased5447.3
35.7–62.7ROR 47.4 · calibrated p 3e-5 ✓
42.0 EB05 33.4 · IC025 +4.5
3/3 methods agree
vs other Prostaglandin Analogs: PRR 10.8 (7.5–15.5)
Likely indication confounding
term in indications
serious n=34not reported in cached trials
Reaction to preservatives7441.7
32.9–53.0ROR 41.8 · calibrated p 5e-5 ✓
37.6 EB05 31.0 · IC025 +4.5
3/3 methods agree
vs other Prostaglandin Analogs: PRR 17.3 (12.1–24.7)
Not in label — unassessedserious n=32not reported in cached trials
Hypotony of eye3740.6
29.0–56.9ROR 40.6 · calibrated p 7e-5 ✓
36.4 EB05 27.6 · IC025 +4.1
3/3 methods agree
vs other Prostaglandin Analogs: PRR 50.0 (24.1–103.6)
Not in label — unassessedserious n=37 · ♀ 41% (drug 61%) · 100% cliniciannot reported in cached trials
Burns second degree14738.4
32.4–45.5ROR 38.5 · calibrated p 7e-5 ✓
35.1 EB05 30.6 · IC025 +4.7
3/3 methods agree
vs other Prostaglandin Analogs: only this drug
Not in label — unassessedserious n=147 · ♀ 19% (drug 61%) · 92% cliniciannot reported in cached trials
Open angle glaucoma4734.7
25.8–46.7ROR 34.7 · calibrated p 2e-4 ✓
31.7 EB05 24.8 · IC025 +4.1
3/3 methods agree
vs other Prostaglandin Analogs: PRR 13.0 (8.6–19.6)
Likely indication confounding
term in indications
serious n=46not reported in cached trials
Choroidal detachment4234.3
25.1–47.0ROR 34.3 · calibrated p 2e-4 ✓
31.4 EB05 24.2 · IC025 +4.0
3/3 methods agree
vs other Prostaglandin Analogs: PRR 18.9 (11.7–30.7)
Not in label — unassessedserious n=41 · 100% cliniciannot reported in cached trials
Eye laser surgery4332.9
24.1–44.9ROR 32.9 · calibrated p 2e-4 ✓
30.2 EB05 23.4 · IC025 +4.0
3/3 methods agree
vs other Prostaglandin Analogs: PRR 47.5 (24.5–92.2)
Not in label — unassessedserious n=40 · 100% consumernot reported in cached trials
Treatment failure5,92632.6
31.8–33.4ROR 36.8 · calibrated p 8e-5 ✓
30.3 EB05 29.6 · IC025 +4.9
3/3 methods agree
vs other Prostaglandin Analogs: PRR 12.2 (11.8–12.6)
Reporting / coding artifactserious PRR 1.6 · 76% consumernot reported in cached trials
Glaucoma1,36331.9
30.2–33.6ROR 32.7 · calibrated p 2e-4 ✓
29.6 EB05 28.3 · IC025 +4.8
3/3 methods agree
vs other Prostaglandin Analogs: PRR 23.6 (21.6–25.8)
Likely indication confounding
term in indications
serious PRR 31.8not reported in cached trials
Hyphaema3126.3
18.3–37.8ROR 26.3 · calibrated p 8e-4 ✓
24.4 EB05 18.0 · IC025 +3.6
3/3 methods agree
vs other Prostaglandin Analogs: PRR 26.9 (14.3–50.6)
Not in label — unassessedserious n=29 · 100% cliniciannot reported in cached trials
Blepharal pigmentation2925.3
17.4–36.8ROR 25.3 · calibrated p 9e-4 ✓
23.6 EB05 17.2 · IC025 +3.5
3/3 methods agree
vs other Prostaglandin Analogs: PRR 1.2 (0.8–1.8)
Not in label — unassessed♀ 100% (drug 61%)not reported in cached trials
Eye burns3223.7
16.6–33.9ROR 23.7 · calibrated p 0.001 ✓
22.2 EB05 16.5 · IC025 +3.5
3/3 methods agree
vs other Prostaglandin Analogs: PRR 43.2 (20.6–90.6)
Not in label — unassessedserious n=23 · ♀ 100% (drug 61%)not reported in cached trials
Choroidal effusion4122.6
16.5–31.0ROR 22.6 · calibrated p 0.001 ✓
21.3 EB05 16.4 · IC025 +3.6
3/3 methods agree
vs other Prostaglandin Analogs: PRR 24.9 (14.6–42.5)
Not in label — unassessedserious n=39 · 100% cliniciannot reported in cached trials
Eye colour change5021.8
16.4–28.9ROR 21.8 · calibrated p 0.002 ✓
20.6 EB05 16.2 · IC025 +3.6
3/3 methods agree
vs other Prostaglandin Analogs: PRR 7.6 (5.3–10.8)
Not in label — unassessed♀ 84% (drug 61%) · 74% consumernot reported in cached trials
Instillation site erythema2621.5
14.5–31.9ROR 21.5 · calibrated p 0.002 ✓
20.2 EB05 14.4 · IC025 +3.2
3/3 methods agree
vs other Prostaglandin Analogs: PRR 79.0 (27.6–226.5)
Not in label — unassessed–not reported in cached trials
Corneal opacity6019.3
14.9–25.0ROR 19.3 · calibrated p 0.003 ✓
18.4 EB05 14.8 · IC025 +3.6
3/3 methods agree
vs other Prostaglandin Analogs: PRR 14.9 (10.2–21.7)
Not in label — unassessedserious n=58not reported in cached trials
Hypopnoea15219.2
16.3–22.6ROR 19.3 · calibrated p 0.002 ✓
18.4 EB05 16.0 · IC025 +3.9
3/3 methods agree
vs other Prostaglandin Analogs: PRR 616.2 (196.5–1,931.7)
Not in label — unassessedserious n=150 · ♀ 17% (drug 61%)not reported in cached trials
Eye irritation2,25017.6
16.9–18.3ROR 18.4 · calibrated p 0.003 ✓
16.9 EB05 16.3 · IC025 +4.0
3/3 methods agree
vs other Prostaglandin Analogs: PRR 9.4 (8.9–9.9)
Not in label — unassessedserious PRR 25.5not reported in cached trials
Dark circles under eyes5917.5
13.5–22.6ROR 17.5 · calibrated p 0.004 ✓
16.7 EB05 13.4 · IC025 +3.5
3/3 methods agree
vs other Prostaglandin Analogs: PRR 7.2 (5.3–10.0)
Not in label — unassessed♀ 100% (drug 61%) · 100% consumernot reported in cached trials
Epidermal necrosis3917.3
12.6–23.8ROR 17.3 · calibrated p 0.005 ✓
16.5 EB05 12.5 · IC025 +3.3
3/3 methods agree
vs other Prostaglandin Analogs: only this drug
Not in label — unassessedserious n=39 · ♀ 100% (drug 61%) · 100% cliniciannot reported in cached trials
Corneal deposits2917.1
11.8–24.9ROR 17.2 · calibrated p 0.005 ✓
16.2 EB05 11.7 · IC025 +3.1
3/3 methods agree
vs other Prostaglandin Analogs: only this drug
Not in label — unassessedserious n=25 · 100% cliniciannot reported in cached trials
Eye allergy5816.4
12.6–21.3ROR 16.4 · calibrated p 0.005 ✓
15.7 EB05 12.5 · IC025 +3.4
3/3 methods agree
vs other Prostaglandin Analogs: PRR 10.1 (7.1–14.3)
Not in label — unassessedserious n=24not reported in cached trials
Corneal oedema8316.1
12.9–20.0ROR 16.1 · calibrated p 0.006 ✓
15.4 EB05 12.8 · IC025 +3.5
3/3 methods agree
vs other Prostaglandin Analogs: PRR 12.3 (9.1–16.7)
Labeled adverse reaction
exact term
serious n=64 · ♀ 39% (drug 61%)not reported in cached trials
Alcohol poisoning9515.5
12.7–19.1ROR 15.6 · calibrated p 0.006 ✓
14.9 EB05 12.6 · IC025 +3.5
3/3 methods agree
vs other Prostaglandin Analogs: only this drug
Not in label — unassessedserious n=95 · ♀ 0% (drug 61%) · 100% cliniciannot reported in cached trials
Punctate keratitis3115.2
10.6–21.8ROR 15.2 · calibrated p 0.008 ✓
14.4 EB05 10.4 · IC025 +3.0
3/3 methods agree
vs other Prostaglandin Analogs: PRR 12.6 (7.6–20.8)
Labeled adverse reaction
exact term
serious n=31 · 100% cliniciannot reported in cached trials

Trial evidence (ClinicalTrials.gov)

✓ Trial adverse-event data found on ClinicalTrials.gov

Largest completed trials with posted results that list Latanoprost as a study intervention. The right-hand column of the signal table shows whether each FAERS term was also recorded in these trials, with a real denominator (0 of 40 signal terms matched).

Caveats: trial populations, doses and follow-up differ from the reporting population; AE terms are sponsor-coded and matched here by wording; absence from a trial list means the term was not reported above the sponsor's frequency threshold, not that it cannot occur.

Most frequently reported reactions

By raw co-report count, regardless of disproportionality. Common terms here are often the illness itself or generic outcomes.

ReactionReportsPRR 95% CI · ROR · χ²/pEBGM EB05 · IC025Label screenSerious-only & strataTrial cross-check
Treatment failure5,92632.6
31.8–33.4ROR 36.8 · calibrated p 8e-5 ✓
30.3 EB05 29.6 · IC025 +4.9
3/3 methods agree
vs other Prostaglandin Analogs: PRR 12.2 (11.8–12.6)
Reporting / coding artifactserious PRR 1.6 · 76% consumernot reported in cached trials
Drug ineffective (drug did not work)3,2341.0
1.0–1.1ROR 1.0 · calibrated p 0.327
1.0 EB05 1.0 · IC025 -0.0
PRR-only: not supported by EBGM or IC
vs other Prostaglandin Analogs: PRR 7.1 (6.8–7.4)
Reporting / coding artifactserious PRR 1.4not reported in cached trials
Fatigue (tiredness)2,3241.3
1.2–1.3ROR 1.3 · calibrated p 0.486
1.3 EB05 1.2 · IC025 +0.3
vs other Prostaglandin Analogs: PRR 28.7 (26.6–30.8)
Not in label — unassessedserious PRR 1.5not reported in cached trials
Eye irritation2,25017.6
16.9–18.3ROR 18.4 · calibrated p 0.003 ✓
16.9 EB05 16.3 · IC025 +4.0
3/3 methods agree
vs other Prostaglandin Analogs: PRR 9.4 (8.9–9.9)
Not in label — unassessedserious PRR 25.5not reported in cached trials
Headache1,8051.2
1.2–1.3ROR 1.2 · calibrated p 0.452
1.2 EB05 1.2 · IC025 +0.2
vs other Prostaglandin Analogs: PRR 23.8 (22.0–25.7)
Labeled adverse reaction
exact term
serious PRR 1.6not reported in cached trials
Intraocular pressure increased (raised eye pressure)1,78667.7
64.4–71.1ROR 70.2 · calibrated p 1e-6 ✓
58.3 EB05 56.0 · IC025 +5.8
3/3 methods agree
vs other Prostaglandin Analogs: PRR 17.9 (16.7–19.3)
Likely indication confounding
term in indications
serious PRR 65.8not reported in cached trials
Death1,6570.8
0.8–0.8ROR 0.8 · calibrated p 0.184
0.8 EB05 0.8 · IC025 -0.4
PRR-only: not supported by EBGM or IC
vs other Prostaglandin Analogs: PRR 33.4 (30.5–36.6)
Outcome field, not a reactionserious PRR 0.8NCT00716742: 5/364 (1.4%) on Latanoprost (serious AE)
Dyspnoea (shortness of breath)1,6551.2
1.2–1.3ROR 1.2 · calibrated p 0.464
1.2 EB05 1.2 · IC025 +0.2
vs other Prostaglandin Analogs: PRR 26.5 (24.3–28.8)
Labeled adverse reaction
exact term
serious PRR 1.4not reported in cached trials
Diarrhoea (diarrhea)1,6381.1
1.0–1.1ROR 1.1 · calibrated p 0.353
1.1 EB05 1.0 · IC025 +0.0
vs other Prostaglandin Analogs: PRR 28.6 (26.2–31.2)
Not in label — unassessedserious PRR 1.2not reported in cached trials
Eye pain1,63812.8
12.2–13.4ROR 13.2 · calibrated p 0.012 ✓
12.4 EB05 11.9 · IC025 +3.5
3/3 methods agree
vs other Prostaglandin Analogs: PRR 11.8 (11.1–12.7)
Labeled adverse reaction
exact term
serious PRR 11.7 · 71% consumernot reported in cached trials
Dizziness1,6291.4
1.3–1.4ROR 1.4 · calibrated p 0.566
1.4 EB05 1.3 · IC025 +0.4
vs other Prostaglandin Analogs: PRR 25.8 (23.7–28.1)
Labeled adverse reaction
exact term
serious PRR 1.6not reported in cached trials
Off label use (used outside approved label)1,6100.8
0.7–0.8ROR 0.8 · calibrated p 0.167
0.8 EB05 0.7 · IC025 -0.4
PRR-only: not supported by EBGM or IC
vs other Prostaglandin Analogs: PRR 21.4 (19.8–23.2)
Reporting / coding artifactserious PRR 1.0not reported in cached trials
Nausea1,5800.8
0.8–0.9ROR 0.8 · calibrated p 0.203
0.8 EB05 0.8 · IC025 -0.3
PRR-only: not supported by EBGM or IC
vs other Prostaglandin Analogs: PRR 27.3 (25.0–29.8)
Labeled adverse reaction
exact term
serious PRR 1.1not reported in cached trials
Fall1,4391.8
1.7–1.9ROR 1.8 · calibrated p 0.855
1.8 EB05 1.7 · IC025 +0.8
vs other Prostaglandin Analogs: PRR 26.1 (23.9–28.6)
Not in label — unassessedserious PRR 2.0not reported in cached trials

Unlabeled candidate signals

These flagged terms were not found in the FDA label text and do not match an artifact pattern. They are the pairs that would merit a structured assessment (temporality, dose-response, biological plausibility, consistency across databases, trial or cohort evidence). The screen has not done that; string-matching misses label wording, and a strong PRR can still be stimulated reporting, co-medication, or the disease itself.

Want to assess one of these properly? The runbook describes the Bradford Hill / trial-evidence workflow used on the assessment page, and handoff_top1000_signals.csv lists the strongest unassessed pairs across all drugs.

Common questions

What are the most reported side effects of Latanoprost?

In FDA FAERS, the most frequently co-reported reaction terms for Latanoprost are fatigue, eye irritation, headache, intraocular pressure increased, dyspnoea, diarrhoea. These are report counts, not rates: FAERS has no denominator, reporting is voluntary and uneven, and a term can be reported because of the illness being treated rather than the drug.

Does Latanoprost have an FDA boxed warning?

No. The FDA label retrieved for Latanoprost has no boxed warning; see the label's Warnings and Precautions for the recognised risks.

Do FAERS signals prove that Latanoprost causes these side effects?

No. A disproportionality signal (PRR, ROR) means a reaction is reported more often with this drug than with others in the database. That can reflect a real effect, but also the disease being treated, stimulated reporting after news or litigation, co-medications, or how reports are coded. Causality needs temporality, dose-response, biological plausibility, consistency across data sources and, ideally, trial or cohort evidence. This page screens each term against the FDA label and ClinicalTrials.gov results; it does not establish causation.

Sources & methods

Page generated 2026-10-14. Label and PubChem text are retrieved automatically and may lag the current label; always check the current prescribing information. OpenPV is a beta research tool of the Open Source Medicine Foundation.