OpenPV Signal Explorer
FAERS disproportionality dashboard
← All drugs
Drug

Fosaprepitant

165 flagged reaction(s) · 14,742 total co-reports · max PRR 259.7
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 Helicobacter Infection 210 259.7 296.3 signal
2 Folliculitis 207 252.5 287.5 signal
3 Hand Deformity 199 190.7 215.9 signal
4 Pemphigus 183 184.5 206.7 signal
5 Autoimmune Disorder 109 142.2 151.9 signal
6 Pericarditis 184 137.9 154.5 signal
7 Synovitis 177 122.3 136.4 signal
8 Glossodynia 211 117.7 134.2 signal
9 Irritable Bowel Syndrome 177 103.1 115.0 signal
10 Hypercholesterolaemia 75 97.6 102.0 signal
11 Bursitis 93 95.9 101.4 signal
12 Wound Infection 73 83.5 87.2 signal
13 Laryngitis 71 81.3 84.8 signal
14 Wound 179 80.0 89.3 signal
15 Foot Deformity 71 79.5 82.9 signal
16 Impaired Healing 199 75.3 85.2 signal
17 Systemic Lupus Erythematosus 185 64.9 72.7 signal
18 Joint Range Of Motion Decreased 68 63.1 65.7 signal
19 Sciatica 70 54.7 57.0 signal
20 Contraindicated Product Administered 130 53.4 57.8 signal
21 Hepatic Cirrhosis 79 52.4 54.9 signal
22 Infusion Related Reaction 277 52.0 61.9 signal
23 Lower Respiratory Tract Infection 185 50.6 56.7 signal
24 Arthropathy 205 45.5 51.7 signal
25 Obesity 58 45.0 46.6 signal
26 Fibromyalgia 88 44.9 47.3 signal
27 Sleep Disorder Due To A General Medical Condition 58 44.4 46.0 signal
28 Blister 200 44.2 50.0 signal
29 Lower Limb Fracture 68 44.1 45.9 signal
30 Weight Fluctuation 37 44.0 45.0 signal
31 Pulmonary Fibrosis 66 42.8 44.5 signal
32 Discomfort 208 42.5 48.3 signal
33 Ill-defined Disorder 201 41.0 46.3 signal
34 Stomatitis 199 40.6 45.9 signal
35 Liver Injury 77 39.4 41.3 signal
36 Hepatic Enzyme Increased 204 37.2 42.1 signal
37 Prescribed Overdose 55 35.2 36.3 signal
38 Ear Infection 74 34.5 36.0 signal
39 Frequent Bowel Movements 74 34.1 35.6 signal
40 Delirium 94 33.7 35.6 signal
41 Type 2 Diabetes Mellitus 81 29.7 31.1 signal
42 Injury 168 29.4 32.5 signal
43 Hip Arthroplasty 36 29.3 30.0 signal
44 Gastrointestinal Disorder 205 28.7 32.5 signal
45 Contusion 207 26.6 30.2 signal
46 Laboratory Test Abnormal 62 26.0 27.0 signal
47 Joint Dislocation 21 24.7 25.0 signal
48 Blood Cholesterol Increased 91 24.1 25.5 signal
49 Pregnancy 39 23.9 24.4 signal
50 Night Sweats 61 23.4 24.3 signal
51 Red Blood Cell Sedimentation Rate Increased 21 23.4 23.7 signal
52 Psoriatic Arthropathy 75 23.1 24.1 signal
53 Colitis Ulcerative 83 23.0 24.2 signal
54 Knee Arthroplasty 38 22.5 23.0 signal
55 Swelling 169 22.4 24.8 signal
56 Sleep Disorder 126 22.3 24.0 signal
57 Road Traffic Accident 74 21.9 22.8 signal
58 Sinusitis 179 21.5 24.0 signal
59 Feeling Hot 103 20.8 22.0 signal
60 White Blood Cell Count Increased 64 20.6 21.3 signal
61 Liver Disorder 71 19.8 20.6 signal
62 General Physical Health Deterioration 184 19.8 22.1 signal
63 Rectal Haemorrhage 67 19.2 20.0 signal
64 Rheumatoid Arthritis 172 18.8 20.8 signal
65 Joint Swelling 180 18.5 20.6 signal
66 Lung Disorder 73 18.4 19.2 signal
67 Musculoskeletal Pain 74 17.3 18.1 signal
68 Inflammation 71 17.1 17.8 signal
69 Maternal Exposure During Pregnancy 121 17.0 18.2 signal
70 Osteoarthritis 58 16.9 17.4 signal
71 Prescribed Underdose 27 16.7 17.0 signal
72 Confusional State 219 16.7 19.1 signal
73 Amnesia 87 16.5 17.3 signal
74 Infection 186 16.0 17.8 signal
75 Alopecia 250 15.7 18.2 signal
76 Osteoporosis 52 15.6 16.1 signal
77 Hypersensitivity 232 15.5 17.8 signal
78 Abdominal Discomfort 207 15.3 17.3 signal
79 Wheezing 72 15.0 15.7 signal
80 Febrile Neutropenia 79 14.7 15.4 signal
81 Oedema 64 14.6 15.1 signal
82 Peripheral Swelling 179 14.4 16.0 signal
83 Dry Mouth 94 14.3 15.1 signal
84 Pancreatitis 61 14.2 14.7 signal
85 Respiratory Depression 14 14.1 14.2 signal
86 Madarosis 13 13.7 13.8 signal
87 Arthritis 86 13.5 14.2 signal
88 Mobility Decreased 78 13.5 14.1 signal
89 Joint Stiffness 28 13.2 13.4 signal
90 Gait Inability 35 13.1 13.3 signal
91 Loss Of Personal Independence In Daily Activities 50 13.0 13.4 signal
92 Respiratory Disorder 30 12.4 12.6 signal
93 Cytokine Release Syndrome 19 12.3 12.5 signal
94 Asthma 109 12.0 12.8 signal
95 Hair Colour Changes 12 11.8 11.9 signal
96 Nasopharyngitis 175 11.7 12.9 signal
97 Therapeutic Product Effect Decreased 42 11.7 12.0 signal
98 Therapy Non-responder 42 11.6 11.9 signal
99 Flushing 93 11.3 11.9 signal
100 Hair Texture Abnormal 12 11.0 11.1 signal
101 Inappropriate Antidiuretic Hormone Secretion 9 10.9 11.0 signal
102 Dyspepsia 83 10.5 10.9 signal
103 Weight Increased 182 10.1 11.2 signal
104 Musculoskeletal Stiffness 71 10.0 10.4 signal
105 C-reactive Protein Increased 28 9.5 9.7 signal
106 Neutrophil Count Decreased 31 9.5 9.6 signal
107 Migraine 69 9.0 9.3 signal
108 Incorrect Route Of Product Administration 12 8.8 8.9 signal
109 Chest Pain 130 8.7 9.3 signal
110 Muscular Weakness 79 8.6 9.0 signal
111 Pancreatitis Acute 15 8.3 8.4 signal
112 Insomnia 176 8.2 9.0 signal
113 Exposure During Pregnancy 41 8.1 8.3 signal
114 Condition Aggravated 195 8.0 8.9 signal
115 Treatment Failure 53 8.0 8.2 signal
116 Pyrexia 223 8.0 9.0 signal
117 Oesophagitis 7 7.9 7.9 signal
118 Abdominal Pain 148 7.9 8.5 signal
119 Hypoaesthesia 95 7.8 8.2 signal
120 Throat Tightness 17 7.8 7.8 signal
121 Hospice Care 6 7.5 7.5 signal
122 Pneumocystis Jirovecii Pneumonia 6 7.4 7.4 signal
123 Pneumonitis 16 7.3 7.4 signal
124 Hypomagnesaemia 8 7.1 7.2 signal
125 Small Intestinal Obstruction 7 7.0 7.1 signal
126 Dyspnoea 321 7.0 8.4 signal
127 Back Injury 6 6.8 6.9 signal
128 Anaphylactic Reaction 30 6.7 6.9 signal
129 Pruritus 205 6.7 7.5 signal
130 Leukopenia 27 6.7 6.8 signal
131 Arthralgia 224 6.7 7.5 signal
132 Thrombocytopenia 60 6.6 6.9 signal
133 Drug Hypersensitivity 104 6.6 7.0 signal
134 Memory Impairment 73 6.6 6.8 signal
135 Visual Impairment 64 6.4 6.6 signal
136 Underdose 38 6.4 6.5 signal
137 Chest Discomfort 53 6.4 6.6 signal
138 Neurotoxicity 9 6.4 6.4 signal
139 Retching 11 6.4 6.4 signal
140 Abdominal Pain Upper 104 6.3 6.6 signal
141 Disability 10 6.2 6.3 signal
142 Neutropenia 66 6.0 6.2 signal
143 Urticaria 81 6.0 6.3 signal
144 Drug-induced Liver Injury 15 6.0 6.1 signal
145 Muscle Spasticity 6 6.0 6.0 signal
146 Pericardial Effusion 11 5.9 5.9 signal
147 Medication Error 26 5.8 5.9 signal
148 Unresponsive To Stimuli 12 5.8 5.8 signal
149 Paraesthesia 73 5.7 5.9 signal
150 Mucosal Inflammation 12 5.7 5.7 signal
151 Rash 194 5.5 6.1 signal
152 Muscle Spasms 81 5.5 5.7 signal
153 Epilepsy 13 5.3 5.3 signal
154 Cytopenia 5 5.2 5.2 signal
155 Upper Gastrointestinal Haemorrhage 7 5.1 5.1 signal
156 Palmar-plantar Erythrodysaesthesia Syndrome 8 4.2 4.2 signal
157 Adverse Event 31 4.2 4.2 signal
158 Metastases To Central Nervous System 4 3.9 3.9 signal
159 Coeliac Disease 3 3.8 3.8 no signal
160 Inflammatory Bowel Disease 3 3.8 3.8 no signal
161 Diabetic Ketoacidosis 7 3.6 3.6 signal
162 Pelvic Pain 5 3.4 3.4 signal
163 Malignant Neoplasm Progression 22 2.7 2.7 signal
164 Neoplasm Progression 7 2.5 2.5 signal
165 Myelosuppression 5 1.8 1.8 no signal