OpenPV Signal Explorer
FAERS disproportionality dashboard
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Drug

Carbidopa

188 flagged reaction(s) · 4,495 total co-reports · max PRR 37.3
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 Hallucination, Visual 114 37.3 38.7 signal
2 Delusion 65 28.8 29.4 signal
3 Hallucination 301 27.5 30.4 signal
4 Muscle Rigidity 30 17.2 17.3 signal
5 Dementia 69 17.0 17.3 signal
6 Parkinsonism 24 16.8 17.0 signal
7 Ileus 30 16.7 16.8 signal
8 Dyskinesia 97 16.4 16.9 signal
9 Orthostatic Hypotension 30 11.8 11.9 signal
10 Hypokinesia 24 11.3 11.4 signal
11 Bladder Disorder 16 11.0 11.1 signal
12 Neuroleptic Malignant Syndrome 19 10.9 11.0 signal
13 Hip Fracture 46 9.8 9.9 signal
14 Product Administration Error 28 9.6 9.7 signal
15 Salivary Hypersecretion 14 9.6 9.6 signal
16 Device Occlusion 19 9.3 9.4 signal
17 Serotonin Syndrome 24 8.6 8.6 signal
18 Prescribed Underdose 24 8.2 8.3 signal
19 Hypersomnia 34 8.1 8.2 signal
20 Personality Change 11 8.0 8.1 signal
21 Myoclonus 13 7.5 7.5 signal
22 Abnormal Behaviour 41 7.0 7.1 signal
23 Dystonia 20 7.0 7.1 signal
24 Dysstasia 29 6.8 6.8 signal
25 Restless Legs Syndrome 18 6.8 6.8 signal
26 Confusional State 152 6.4 6.7 signal
27 Oral Discomfort 13 6.4 6.4 signal
28 Paranoia 16 6.3 6.3 signal
29 Gait Inability 30 6.2 6.2 signal
30 Speech Disorder 47 6.1 6.2 signal
31 Head Injury 28 6.1 6.1 signal
32 Disorientation 34 5.9 5.9 signal
33 Incontinence 9 5.8 5.8 signal
34 Sudden Death 9 5.8 5.8 signal
35 Posterior Reversible Encephalopathy Syndrome 8 5.7 5.8 signal
36 Skin Haemorrhage 12 5.7 5.7 signal
37 Cognitive Disorder 38 5.6 5.6 signal
38 Urinary Retention 27 5.5 5.6 signal
39 Tremor 134 5.5 5.7 signal
40 Nightmare 28 5.5 5.5 signal
41 Abnormal Dreams 22 5.4 5.4 signal
42 Agitation 58 5.4 5.5 signal
43 Initial Insomnia 8 5.4 5.4 signal
44 Psychotic Disorder 23 5.3 5.4 signal
45 Pneumonia Aspiration 19 5.2 5.2 signal
46 Mental Status Changes 21 5.2 5.2 signal
47 Fall 249 5.1 5.5 signal
48 Squamous Cell Carcinoma 7 5.1 5.1 signal
49 Blood Pressure Decreased 49 5.0 5.1 signal
50 Aspiration 8 5.0 5.1 signal
51 Mania 12 5.0 5.0 signal
52 Restlessness 26 4.8 4.9 signal
53 Mitral Valve Incompetence 8 4.8 4.8 signal
54 Blood Pressure Fluctuation 17 4.8 4.8 signal
55 Micturition Urgency 8 4.8 4.8 signal
56 Balance Disorder 60 4.7 4.8 signal
57 Sluggishness 7 4.7 4.7 signal
58 Depressed Level Of Consciousness 27 4.7 4.7 signal
59 Sensory Disturbance 11 4.7 4.7 signal
60 Hyperlipidaemia 8 4.6 4.6 signal
61 Gait Disturbance 127 4.5 4.7 signal
62 Middle Insomnia 12 4.4 4.4 signal
63 Sputum Discoloured 6 4.3 4.3 signal
64 Mood Altered 17 4.3 4.3 signal
65 Somnolence 125 4.2 4.4 signal
66 Presyncope 15 4.2 4.3 signal
67 Hospice Care 6 4.2 4.2 signal
68 Panic Attack 22 4.1 4.1 signal
69 White Blood Cell Count Increased 23 4.1 4.1 signal
70 Urinary Tract Infection 100 4.0 4.1 signal
71 Blood Sodium Decreased 11 4.0 4.0 signal
72 Economic Problem 9 4.0 4.0 signal
73 Encephalopathy 14 3.9 3.9 signal
74 Carpal Tunnel Syndrome 8 3.9 3.9 signal
75 Drug Effect Less Than Expected 8 3.9 3.9 signal
76 Dysphagia 53 3.8 3.9 signal
77 Dysarthria 21 3.8 3.8 signal
78 Memory Impairment 76 3.8 3.8 signal
79 Depressed Mood 29 3.8 3.8 signal
80 Unresponsive To Stimuli 14 3.7 3.7 signal
81 Increased Tendency To Bruise 5 3.7 3.7 signal
82 Urosepsis 5 3.7 3.7 signal
83 Psychomotor Hyperactivity 9 3.7 3.7 signal
84 Aggression 27 3.7 3.7 signal
85 Therapeutic Response Unexpected 24 3.6 3.7 signal
86 Mobility Decreased 38 3.6 3.7 signal
87 Dizziness Postural 5 3.6 3.6 signal
88 Sinus Bradycardia 5 3.5 3.5 signal
89 Poor Quality Sleep 11 3.5 3.5 signal
90 Head Discomfort 9 3.5 3.5 signal
91 Syncope 51 3.5 3.5 signal
92 Chronic Kidney Disease 39 3.5 3.5 signal
93 Peripheral Coldness 7 3.5 3.5 signal
94 Loss Of Personal Independence In Daily Activities 24 3.4 3.5 signal
95 Hallucination, Auditory 8 3.4 3.4 signal
96 Product Dose Omission 33 3.4 3.4 signal
97 Movement Disorder 16 3.4 3.4 signal
98 Nocturia 6 3.4 3.4 signal
99 Musculoskeletal Stiffness 42 3.3 3.3 signal
100 Transient Ischaemic Attack 16 3.2 3.2 signal
101 Impaired Gastric Emptying 6 3.2 3.2 signal
102 Decreased Activity 5 3.2 3.2 signal
103 Neurotoxicity 8 3.1 3.2 signal
104 Nerve Injury 5 3.1 3.1 signal
105 Device Issue 39 3.1 3.1 signal
106 Generalised Tonic-clonic Seizure 7 2.9 2.9 signal
107 Product Dose Omission Issue 119 2.9 2.9 signal
108 Wrist Fracture 5 2.8 2.9 signal
109 Glaucoma 8 2.8 2.8 signal
110 Irritability 25 2.8 2.9 signal
111 Spinal Operation 5 2.8 2.8 signal
112 Choking 8 2.8 2.8 signal
113 Therapeutic Product Effect Decreased 18 2.8 2.8 signal
114 Tendon Rupture 5 2.8 2.8 no signal
115 Tooth Extraction 5 2.7 2.7 no signal
116 Ill-defined Disorder 24 2.7 2.7 signal
117 Euphoric Mood 4 2.7 2.7 no signal
118 Scratch 4 2.6 2.6 no signal
119 Knee Arthroplasty 8 2.6 2.6 signal
120 Bedridden 5 2.6 2.6 no signal
121 Respiratory Tract Congestion 6 2.6 2.6 signal
122 Disturbance In Attention 20 2.5 2.5 signal
123 Fear 10 2.5 2.5 signal
124 Feeling Jittery 7 2.5 2.5 signal
125 Product Packaging Quantity Issue 4 2.5 2.5 no signal
126 Intentional Dose Omission 10 2.5 2.5 signal
127 Nephropathy Toxic 4 2.5 2.5 no signal
128 Abasia 9 2.5 2.5 signal
129 Stevens-johnson Syndrome 8 2.5 2.5 signal
130 Internal Haemorrhage 4 2.4 2.4 no signal
131 Activities Of Daily Living Impaired 7 2.4 2.4 signal
132 Mood Swings 11 2.4 2.4 signal
133 Injection Site Haematoma 5 2.3 2.3 no signal
134 Renal Injury 10 2.3 2.3 signal
135 Withdrawal Syndrome 14 2.3 2.3 signal
136 Wrong Technique In Device Usage Process 15 2.2 2.2 signal
137 Nervousness 17 2.2 2.2 signal
138 Femur Fracture 10 2.2 2.2 signal
139 Thinking Abnormal 6 2.2 2.2 no signal
140 Deformity 3 2.2 2.2 no signal
141 Injection Site Irritation 4 2.2 2.2 no signal
142 Knee Operation 3 2.1 2.1 no signal
143 Sedation 8 2.1 2.1 no signal
144 Therapy Interrupted 21 2.1 2.1 signal
145 Complication Associated With Device 4 2.1 2.1 no signal
146 Upper Limb Fracture 6 2.0 2.0 no signal
147 Malignant Melanoma 4 2.0 2.0 no signal
148 Underdose 21 2.0 2.0 no signal
149 Death 246 2.0 2.0 no signal
150 Anosmia 4 1.9 1.9 no signal
151 Haemorrhage Intracranial 4 1.8 1.8 no signal
152 Pharmaceutical Product Complaint 7 1.8 1.8 no signal
153 Anger 9 1.8 1.8 no signal
154 Blood Count Abnormal 4 1.8 1.8 no signal
155 Therapeutic Response Shortened 8 1.7 1.7 no signal
156 Device Defective 4 1.7 1.7 no signal
157 Incorrect Product Administration Duration 5 1.7 1.7 no signal
158 Metastases To Bone 4 1.7 1.7 no signal
159 Hair Colour Changes 3 1.6 1.6 no signal
160 Poisoning 3 1.6 1.6 no signal
161 Incorrect Dose Administered By Device 6 1.6 1.6 no signal
162 Device Use Issue 4 1.6 1.6 no signal
163 Akathisia 3 1.5 1.5 no signal
164 Prostatic Specific Antigen Increased 3 1.5 1.5 no signal
165 Hepatocellular Injury 3 1.4 1.4 no signal
166 Product Physical Issue 4 1.4 1.4 no signal
167 Product Adhesion Issue 7 1.3 1.3 no signal
168 Drug Administration Error 6 1.3 1.3 no signal
169 Device Leakage 8 1.3 1.3 no signal
170 Device Dislocation 8 1.3 1.3 no signal
171 Drug Effect Decreased 10 1.2 1.3 no signal
172 Expired Product Administered 6 1.2 1.2 no signal
173 Plasma Cell Myeloma 7 1.2 1.2 no signal
174 Tardive Dyskinesia 5 1.2 1.2 no signal
175 Drug Dose Omission 28 1.1 1.1 no signal
176 Device Delivery System Issue 4 1.0 1.0 no signal
177 Device Breakage 6 1.0 1.0 no signal
178 Application Site Erythema 4 1.0 1.0 no signal
179 Intentional Self-injury 3 1.0 1.0 no signal
180 Multiple Sclerosis 7 1.0 1.0 no signal
181 Drug Effective For Unapproved Indication 4 0.9 0.9 no signal
182 Application Site Pruritus 3 0.9 0.9 no signal
183 Intentional Overdose 8 0.9 0.9 no signal
184 Device Difficult To Use 8 0.8 0.8 no signal
185 Extrapyramidal Disorder 3 0.8 0.8 no signal
186 Drug Withdrawal Syndrome 10 0.8 0.8 no signal
187 Injection Site Haemorrhage 7 0.6 0.6 no signal
188 Drug Abuse 6 0.5 0.5 no signal