OpenPV Signal Explorer
FAERS disproportionality dashboard
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Drug

Meclizine Hydrocloride

222 flagged reaction(s) · 4,803 total co-reports · max PRR 26.8
Important: Reactions below are the flagged terms from this drug’s FAERS report history (min. 3 co-reports per term) — PRR/ROR indicate disproportionality in spontaneous reporting, not causation. Data from FDA FAERS via openFDA. Last recalculated: 2026-09-14.
Reaction Co-reports (a) PRR ROR Signal
1 Seasonal Allergy 49 26.8 27.3 signal
2 Infusion Site Pain 38 23.0 23.3 signal
3 Vertigo 116 14.7 15.3 signal
4 Initial Insomnia 13 9.8 9.9 signal
5 Brain Fog 18 9.5 9.6 signal
6 Insurance Issue 18 9.3 9.4 signal
7 Anhedonia 32 9.3 9.4 signal
8 Laryngitis 13 9.2 9.3 signal
9 Eye Pain 64 8.9 9.1 signal
10 Product Dose Omission In Error 30 8.6 8.7 signal
11 Respiratory Tract Infection 29 8.6 8.7 signal
12 Intervertebral Disc Degeneration 10 8.3 8.3 signal
13 Eye Infection 12 8.2 8.3 signal
14 Product Use Complaint 16 8.0 8.0 signal
15 Impaired Gastric Emptying 13 7.9 7.9 signal
16 Sinus Disorder 20 7.8 7.8 signal
17 Skin Haemorrhage 14 7.5 7.5 signal
18 Gastroenteritis Viral 17 7.2 7.3 signal
19 Skin Laceration 10 7.1 7.2 signal
20 Osteopenia 14 7.1 7.1 signal
21 Nocturia 11 7.0 7.0 signal
22 Limb Injury 24 6.8 6.9 signal
23 Illness 88 6.7 6.9 signal
24 Ear Infection 23 6.7 6.7 signal
25 Weight Fluctuation 9 6.7 6.7 signal
26 Flank Pain 8 6.6 6.6 signal
27 Candida Infection 14 6.5 6.5 signal
28 Ocular Discomfort 9 6.4 6.4 signal
29 Productive Cough 39 6.3 6.4 signal
30 Product Dose Omission Issue 229 6.2 6.7 signal
31 Sleep Disorder Due To A General Medical Condition 13 6.2 6.2 signal
32 Skin Fissures 15 6.1 6.1 signal
33 Dermatitis Contact 9 6.1 6.1 signal
34 Head Injury 25 6.1 6.1 signal
35 Musculoskeletal Chest Pain 12 6.0 6.0 signal
36 Ankle Fracture 12 6.0 6.0 signal
37 Sinusitis 79 5.9 6.1 signal
38 Urosepsis 7 5.8 5.9 signal
39 Full Blood Count Abnormal 8 5.8 5.9 signal
40 Upper Respiratory Tract Infection 35 5.8 5.9 signal
41 Covid-19 Pneumonia 9 5.8 5.8 signal
42 Joint Injury 16 5.8 5.8 signal
43 Balance Disorder 64 5.7 5.8 signal
44 Sleep Apnoea Syndrome 14 5.6 5.7 signal
45 Economic Problem 11 5.5 5.5 signal
46 Ligament Sprain 7 5.5 5.5 signal
47 Drug Effect Less Than Expected 10 5.5 5.5 signal
48 Chronic Kidney Disease 54 5.4 5.5 signal
49 Localised Infection 17 5.4 5.4 signal
50 Tooth Abscess 7 5.3 5.3 signal
51 Poor Venous Access 7 5.2 5.2 signal
52 Scratch 7 5.2 5.2 signal
53 Bronchitis 50 5.2 5.3 signal
54 Ear Pain 13 5.1 5.2 signal
55 Wrist Fracture 8 5.1 5.2 signal
56 Restless Legs Syndrome 12 5.1 5.1 signal
57 Decreased Activity 7 5.0 5.0 signal
58 Iron Deficiency Anaemia 6 5.0 5.0 signal
59 Urinary Tract Infection 111 5.0 5.2 signal
60 Loss Of Personal Independence In Daily Activities 31 5.0 5.1 signal
61 Skin Cancer 14 5.0 5.0 signal
62 Migraine 60 4.9 5.0 signal
63 Foot Fracture 12 4.9 4.9 signal
64 Sciatica 10 4.9 4.9 signal
65 Dizziness Postural 6 4.8 4.8 signal
66 Head Discomfort 11 4.8 4.8 signal
67 Covid-19 109 4.7 4.9 signal
68 Inability To Afford Medication 6 4.7 4.7 signal
69 Hospice Care 6 4.7 4.7 signal
70 Irritable Bowel Syndrome 13 4.7 4.7 signal
71 Gait Inability 20 4.7 4.7 signal
72 Bladder Disorder 6 4.6 4.7 signal
73 Nasal Congestion 35 4.6 4.7 signal
74 Fracture 11 4.5 4.5 signal
75 Glomerular Filtration Rate Decreased 7 4.4 4.5 signal
76 Oxygen Saturation Decreased 32 4.4 4.5 signal
77 Dizziness 284 4.4 4.8 signal
78 Incontinence 6 4.4 4.4 signal
79 Respiratory Tract Congestion 9 4.4 4.4 signal
80 Fall 188 4.4 4.6 signal
81 Hypersomnia 16 4.3 4.3 signal
82 Dry Eye 27 4.3 4.3 signal
83 Paralysis 8 4.3 4.3 signal
84 Back Injury 6 4.3 4.3 signal
85 Feeding Disorder 11 4.2 4.3 signal
86 Back Disorder 9 4.2 4.3 signal
87 Intentional Dose Omission 15 4.2 4.2 signal
88 Presyncope 13 4.1 4.2 signal
89 Neck Pain 30 4.1 4.2 signal
90 Photophobia 10 4.1 4.1 signal
91 Therapeutic Response Shortened 17 4.1 4.1 signal
92 Bedridden 7 4.1 4.1 signal
93 Cystitis 17 4.1 4.1 signal
94 Device Failure 8 4.1 4.1 signal
95 Musculoskeletal Discomfort 9 4.0 4.0 signal
96 Multiple Sclerosis 25 4.0 4.0 signal
97 Thyroid Disorder 8 4.0 4.0 signal
98 Delusion 8 4.0 4.0 signal
99 Stress 37 4.0 4.0 signal
100 Influenza 57 3.9 4.0 signal
101 Diverticulitis 14 3.9 3.9 signal
102 Multiple Sclerosis Relapse 35 3.9 3.9 signal
103 Dyspnoea Exertional 19 3.9 3.9 signal
104 Blood Pressure Abnormal 10 3.9 3.9 signal
105 Intervertebral Disc Protrusion 11 3.9 3.9 signal
106 Tinnitus 23 3.8 3.9 signal
107 Disturbance In Attention 27 3.8 3.9 signal
108 Chronic Obstructive Pulmonary Disease 26 3.8 3.9 signal
109 Full Blood Count Decreased 10 3.8 3.8 signal
110 Spinal Operation 6 3.8 3.8 signal
111 Pain In Jaw 14 3.8 3.8 signal
112 Oral Pain 11 3.8 3.8 signal
113 Eye Discharge 5 3.8 3.8 signal
114 Ear Discomfort 5 3.8 3.8 signal
115 Skeletal Injury 5 3.7 3.7 signal
116 Hereditary Angioedema 5 3.7 3.7 signal
117 Asthma 53 3.6 3.7 signal
118 Cough 132 3.6 3.8 signal
119 Ocular Hyperaemia 22 3.6 3.6 signal
120 Hip Fracture 15 3.6 3.6 signal
121 Dementia 13 3.6 3.6 signal
122 Oropharyngeal Pain 43 3.6 3.6 signal
123 Body Height Decreased 5 3.6 3.6 signal
124 Blood Pressure Fluctuation 11 3.5 3.5 signal
125 Fluid Retention 23 3.5 3.5 signal
126 Foot Deformity 5 3.5 3.5 signal
127 Sinus Congestion 6 3.4 3.4 signal
128 Chest Discomfort 45 3.4 3.4 signal
129 Lacrimation Increased 13 3.4 3.4 signal
130 Rhinorrhoea 28 3.3 3.4 signal
131 Flushing 44 3.3 3.4 signal
132 Rash Macular 15 3.3 3.3 signal
133 Aphonia 6 3.3 3.3 signal
134 Hallucination, Visual 9 3.3 3.3 signal
135 Hot Flush 32 3.3 3.3 signal
136 Multiple Fractures 7 3.3 3.3 signal
137 Nasopharyngitis 78 3.3 3.3 signal
138 Tremor 69 3.2 3.3 signal
139 Eye Irritation 23 3.2 3.2 signal
140 Bone Density Decreased 13 3.2 3.2 signal
141 Bone Pain 24 3.2 3.2 signal
142 Injection Site Discolouration 5 3.1 3.1 signal
143 Tooth Disorder 9 3.1 3.1 signal
144 Sneezing 9 3.1 3.1 signal
145 Therapy Partial Responder 6 3.1 3.1 signal
146 Exposure Via Skin Contact 9 3.1 3.1 signal
147 Inappropriate Schedule Of Product Administration 70 3.0 3.1 signal
148 Hip Arthroplasty 6 3.0 3.0 signal
149 Sluggishness 4 3.0 3.0 no signal
150 Poor Quality Product Administered 4 3.0 3.0 no signal
151 Rotator Cuff Syndrome 5 3.0 3.0 signal
152 Hallucination 29 3.0 3.0 signal
153 Throat Irritation 17 2.9 2.9 signal
154 Depressed Mood 20 2.9 2.9 signal
155 Eye Swelling 14 2.9 2.9 signal
156 Sars-cov-2 Test Positive 5 2.9 2.9 signal
157 Hunger 5 2.9 2.9 signal
158 Pharyngitis Streptococcal 4 2.8 2.8 no signal
159 Pulmonary Thrombosis 4 2.8 2.8 no signal
160 Bipolar Disorder 4 2.8 2.8 no signal
161 Injection Site Nodule 4 2.8 2.8 no signal
162 Eye Pruritus 12 2.8 2.8 signal
163 Oral Discomfort 5 2.8 2.8 signal
164 Product Availability Issue 8 2.7 2.8 signal
165 Feeling Abnormal 85 2.7 2.8 signal
166 Emotional Distress 42 2.7 2.7 signal
167 Pulmonary Arterial Hypertension 5 2.6 2.6 no signal
168 Influenza Like Illness 28 2.6 2.6 signal
169 Macular Degeneration 4 2.6 2.6 no signal
170 Therapy Interrupted 23 2.6 2.6 signal
171 Injection Site Bruising 26 2.5 2.6 signal
172 Bone Loss 5 2.5 2.5 no signal
173 Surgery 19 2.5 2.5 signal
174 Procedural Pain 9 2.5 2.5 signal
175 Blood Thyroid Stimulating Hormone Increased 3 2.5 2.5 no signal
176 Blood Glucose Abnormal 6 2.5 2.5 no signal
177 Tendon Rupture 4 2.5 2.5 no signal
178 Glycosylated Haemoglobin Increased 8 2.4 2.4 signal
179 Needle Issue 9 2.4 2.4 signal
180 Systemic Lupus Erythematosus 11 2.4 2.4 signal
181 Decreased Immune Responsiveness 3 2.4 2.4 no signal
182 Complication Associated With Device 4 2.3 2.3 no signal
183 Ovarian Cyst 3 2.3 2.3 no signal
184 Dry Skin 39 2.3 2.3 signal
185 Femur Fracture 9 2.2 2.2 signal
186 Device Use Issue 5 2.2 2.2 no signal
187 Knee Arthroplasty 6 2.2 2.2 no signal
188 Gastric Disorder 10 2.2 2.2 signal
189 Syringe Issue 5 2.2 2.2 no signal
190 Dermatitis Atopic 13 2.0 2.0 signal
191 Unintentional Medical Device Removal 3 2.0 2.0 no signal
192 Injection Site Urticaria 6 1.9 1.9 no signal
193 Incorrect Product Administration Duration 5 1.9 1.9 no signal
194 Foetal Exposure During Pregnancy 20 1.9 1.9 no signal
195 Injection Site Warmth 5 1.9 1.9 no signal
196 Product Administered At Inappropriate Site 4 1.7 1.7 no signal
197 Injection Site Swelling 16 1.6 1.6 no signal
198 Serotonin Syndrome 4 1.6 1.6 no signal
199 Intentional Overdose 13 1.6 1.6 no signal
200 Completed Suicide 17 1.6 1.6 no signal
201 Intentional Self-injury 4 1.5 1.5 no signal
202 Breast Cancer Female 5 1.4 1.4 no signal
203 Device Issue 16 1.4 1.4 no signal
204 Wrong Technique In Product Usage Process 37 1.4 1.4 no signal
205 Injection Site Pain 54 1.4 1.4 no signal
206 Application Site Pruritus 4 1.4 1.4 no signal
207 Device Use Error 6 1.4 1.4 no signal
208 Psoriatic Arthropathy 7 1.3 1.3 no signal
209 Injection Site Rash 5 1.3 1.3 no signal
210 Injection Site Mass 6 1.3 1.3 no signal
211 Wrong Technique In Device Usage Process 7 1.2 1.2 no signal
212 Skin Irritation 7 1.2 1.2 no signal
213 Injection Site Haemorrhage 12 1.2 1.2 no signal
214 Injection Site Pruritus 10 1.2 1.2 no signal
215 Accidental Exposure To Product 15 1.2 1.2 no signal
216 Device Malfunction 10 1.1 1.1 no signal
217 Injection Site Erythema 17 1.1 1.1 no signal
218 Drug Effective For Unapproved Indication 4 1.1 1.1 no signal
219 Device Leakage 5 0.9 0.9 no signal
220 Product Storage Error 9 0.8 0.8 no signal
221 Device Difficult To Use 5 0.6 0.6 no signal
222 Drug Dose Omission By Device 4 0.4 0.4 no signal