What the label lists and what reports show
Adalimumab-aacf side effects
Adalimumab-aacf's FDA label: “Most common adverse reactions (>10%) are infections (e.g. upper respiratory, sinusitis), injection site reactions, headache and rash.” FAERS holds 300 reports naming it through July 30, 2026; the reaction reported most often, leaving out the conditions it is used for, product-use terms and outcomes, is diarrhoea (26 reports).
- No generic listed
- Boxed warning
Check it at the source: the adalimumab-aacf FDA label on DailyMed (effective January 30, 2026, Fresenius Kabi USA, LLC); the FDA FAERS public dashboard.
What does the patient leaflet say about side effects?
From the patient leaflet: What are the possible side effects of IDACIO?IDACIO can cause serious side effects, including: See “ What is the most important information I should know about IDACIO? ” Serious Infections. Your healthcare provider will examine you for TB and perform a test to see if you have TB. If your healthcare provider feels that you are at risk for TB, you may be treated with medicine for TB before you begin treatment with IDACIO and during treatment with IDACIO. Even if your TB test is negative your healthcare provider should carefully monitor you for TB infections while you are taking IDACIO. People who had a negative TB skin test before receiving adalimumab products have developed active TB. […]
Source: FDA drug label, Fresenius Kabi USA, LLC, effective January 30, 2026 (SPL set 43de75ac-1a37-4609-9edd-68bda2448a47), via openFDA; the full label on DailyMed
What does the label list?
From the label: adverse reactionsMost common adverse reactions (>10%) are infections (e.g. upper respiratory, sinusitis), injection site reactions, headache and rash.
Table 1. Adverse Reactions Reported by ≥5% of Patients Treated with Adalimumab during Placebo-Controlled Period of Pooled RA Studies (Studies RA-I, RA-II, RA-III, and RA-IV)
| Reaction | Adalimumab 40 mg subcutaneous Every Other Week (N=705) | Placebo (N=690) |
|---|---|---|
| Upper respiratory infection | 17% | 13% |
| Sinusitis | 11% | 9% |
| Flu syndrome | 7% | 6% |
| Nausea | 9% | 8% |
| Abdominal pain | 7% | 4% |
| Laboratory test abnormal | 8% | 7% |
| Hypercholesterolemia | 6% | 4% |
| Hyperlipidemia | 7% | 5% |
| Hematuria | 5% | 4% |
| Alkaline phosphatase increased | 5% | 3% |
| Headache | 12% | 8% |
| Rash | 12% | 6% |
| Accidental injury | 10% | 8% |
| Injection site reaction | 8% | 1% |
| Back pain | 6% | 4% |
| Urinary tract infection | 8% | 5% |
| Hypertension | 5% | 3% |
Rows and numbers as the label prints them, under its own column headings (the first rows of a longer table where it runs on). A reaction in a trial table is not necessarily caused by the medicine, and trials differ from everyday use.
From the label: adverse reactions, continuedThe following clinically significant adverse reactions are described elsewhere in the labeling: Serious Infections [see Warnings and Precautions ( 5.1 )] Malignancies [see Warnings and Precautions ( 5.2 )] Hypersensitivity Reactions [see Warnings and Precautions ( 5.3 )] Hepatitis B Virus Reactivation [see Warnings and Precautions ( 5.4 )] Neurologic Reactions [see Warnings and Precautions ( 5.5 )] Hematological Reactions [see Warnings and Precautions ( 5.6 )] Heart Failure [see Warnings and Precautions ( 5.8 )] Autoimmunity [see Warnings and Precautions ( 5.9 )] Most common adverse reactions (>10%) are infections (e.g. upper respiratory, sinusitis), injection site reactions, headache and rash. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Fresenius Kabi USA, LLC at 1-800-551-7176 or FDA at 1-800-FDA-1088- or www.fda.gov/medwatch 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The most common adverse reaction with adalimumab was injection site reactions. …
Source: FDA drug label, Fresenius Kabi USA, LLC, effective January 30, 2026 (SPL set 43de75ac-1a37-4609-9edd-68bda2448a47), via openFDA; the full label on DailyMed
What do FAERS reports show?
300 reports list adalimumab-aacf among the medicines taken, each a report of something that happened, not proof the medicine caused it; 2 are coded as a death and 147 as a hospital stay. Counts follow how widely a medicine is used and watched, and they are not a measure of how risky it is. Of the 19 reactions below, 6 are named by the same term (in US spelling) in the label's adverse reactions, warnings or patient leaflet; a reaction the label does not name may still be there under another word, and a report does not show that the medicine caused it.
The 25 most reported reactions
Source: FDA Adverse Event Reporting System (FAERS) via openFDA, reports through July 30, 2026; reactions as MedDRA preferred terms
What next?
- Adalimumab-aacf: the full record
- label, generics, price, shortages, recalls
- Report a side effect to the FDA
- MedWatch
- Side effects hub
- the most reported medicines and reactions