Drug
Penicillin G Benzathine
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 | Syringe Issue | 15 | 13.4 | 13.5 | signal |
| 2 | Transfusion | 7 | 10.4 | 10.4 | signal |
| 3 | Premature Baby | 18 | 9.3 | 9.4 | signal |
| 4 | Poor Quality Product Administered | 6 | 9.2 | 9.2 | signal |
| 5 | Injection Site Nodule | 6 | 8.5 | 8.6 | signal |
| 6 | Economic Problem | 8 | 8.1 | 8.2 | signal |
| 7 | Rash Maculo-papular | 11 | 7.8 | 7.8 | signal |
| 8 | Needle Issue | 13 | 7.1 | 7.2 | signal |
| 9 | Coeliac Disease | 4 | 6.4 | 6.4 | signal |
| 10 | Agranulocytosis | 7 | 5.9 | 5.9 | signal |
| 11 | Status Epilepticus | 4 | 5.5 | 5.5 | signal |
| 12 | Injection Site Warmth | 7 | 5.3 | 5.3 | signal |
| 13 | Anhedonia | 9 | 5.3 | 5.3 | signal |
| 14 | Injection Site Induration | 4 | 4.8 | 4.8 | signal |
| 15 | Injection Site Swelling | 23 | 4.7 | 4.8 | signal |
| 16 | Injection Site Haematoma | 4 | 4.3 | 4.3 | signal |
| 17 | Caesarean Section | 3 | 4.0 | 4.0 | signal |
| 18 | Device Breakage | 10 | 4.0 | 4.0 | signal |
| 19 | Injury Associated With Device | 5 | 3.9 | 3.9 | signal |
| 20 | Injection Site Discolouration | 3 | 3.8 | 3.8 | no signal |
| 21 | Foetal Exposure During Pregnancy | 19 | 3.7 | 3.7 | signal |
| 22 | Incorrect Product Storage | 3 | 3.5 | 3.5 | no signal |
| 23 | Injection Site Mass | 8 | 3.4 | 3.4 | signal |
| 24 | Injection Site Pain | 63 | 3.2 | 3.4 | signal |
| 25 | Bone Density Decreased | 6 | 3.0 | 3.0 | signal |
| 26 | Premature Delivery | 3 | 2.9 | 2.9 | no signal |
| 27 | Product Administered At Inappropriate Site | 3 | 2.6 | 2.6 | no signal |
| 28 | Device Delivery System Issue | 4 | 2.4 | 2.4 | no signal |