Warnings for Kenalog 10 Injection
Serious Neurologic Adverse Reactions With Epidural Administration
Serious neurologic events, some resulting in death, have been reported with epidural injection of corticosteroids (see WARNINGS: Neurologic). Specific events reported include, but are not limited to, spinal cord infarction, paraplegia, quadriplegia, cortical blindness, and stroke. These serious neurologic events have been reported with and without use of fluoroscopy. The safety and effectiveness of epidural administration of corticosteroids have not been established, and corticosteroids are not approved for this use.
General
Exposure to excessive amounts of benzyl alcohol has been associated with toxicity (hypotension, metabolic acidosis), particularly in neonates, and an increased incidence of kernicterus, particularly in small preterm infants. There have been rare reports of deaths, primarily in preterm infants, associated with exposure to excessive amounts of benzyl alcohol. The amount of benzyl alcohol from medications is usually considered negligible compared to that received in flush solutions containing benzyl alcohol. Administration of high dosages of medications containing this preservative must take into account the total amount of benzyl alcohol administered. The amount of benzyl alcohol at which toxicity may occur is not known. If the patient requires more than the recommended dosages or other medications containing this preservative, the practitioner must consider the daily metabolic load of benzyl alcohol from these combined sources (see PRECAUTIONS: Pediatric Use).
Because KENALOG-10 Injection (triamcinolone acetonide injectable suspension, USP) is a suspension, it should not be administered intravenously. Strict aseptic technique is mandatory.
Rare instances of anaphylaxis have occurred in patients receiving corticosteroid therapy (see ADVERSE REACTIONS). Cases of serious anaphylaxis, including death, have been reported in individuals receiving triamcinolone acetonide injection, regardless of the route of administration.
Increased dosage of rapidly acting corticosteroids is indicated in patients on corticosteroid therapy subjected to any unusual stress before, during, and after the stressful situation.
KENALOG-10 Injection is a long-acting preparation, and is not suitable for use in acute stress situations.
Results from one multicenter, randomized, placebo-controlled study with methylprednisolone hemisuccinate, an intravenous corticosteroid, showed an increase in early (at 2 weeks) and late (at 6 months) mortality in patients with cranial trauma who were determined not to have other clear indications for corticosteroid treatment. High doses of systemic corticosteroids, including KENALOG-10 Injection, should not be used for the treatment of traumatic brain injury.
Cardio-Renal
Average and large doses of corticosteroids can cause elevation of blood pressure, salt and water retention, and increased excretion of potassium. These effects are less likely to occur with the synthetic derivatives except when they are used in large doses. Dietary salt restriction and potassium supplementation may be necessary. All corticosteroids increase calcium excretion.
Literature reports suggest an apparent association between use of corticosteroids and left ventricular free wall rupture after a recent myocardial infarction; therefore, therapy with corticosteroids should be used with great caution in these patients.
There have been cases reported in which concomitant use of amphotericin B and hydrocortisone was followed by cardiac enlargement and congestive heart failure (see PRECAUTIONS: DRUG INTERACTIONS: Amphotericin B injection and potassium-depleting agents).
Endocrine
Corticosteroids can produce reversible hypothalamic-pituitary adrenal (HPA) axis suppression with the potential for glucocorticosteroid insufficiency after withdrawal of treatment.
Metabolic clearance of corticosteroids is decreased in hypothyroid patients and increased in hyperthyroid patients. Changes in thyroid status of the patient may necessitate adjustment in dosage.
Immunosuppression And Increased Risk Of Infection
Corticosteroids, including KENALOG-10, suppress the immune system and increase the risk of infection with any pathogen, including viral, bacterial, fungal, protozoan, or helminthic pathogens. Corticosteroids can:
- Reduce resistance to new infections
- Exacerbate existing infections
- Increase the risk of disseminated infections
- Increase the risk of reactivation or exacerbation of latent infections
- Mask some signs of infection
Corticosteroid-associated infections can be mild but can be severe and at times fatal. The rate of infectious complications increases with increasing corticosteroid dosages.
Monitor for the development of infection and consider KENALOG-10 withdrawal or dosage reduction as needed.
Do not administer KENALOG-10 by an intraarticular, intrabursal, intratendinous or intralesional route in the presence of acute local infection.
Tuberculosis
If KENALOG-10 is used to treat a condition in patients with latent tuberculosis or tuberculin reactivity, reactivation of the disease may occur. Closely monitor such patients for reactivation. During prolonged KENALOG-10 therapy, patients with latent tuberculosis or tuberculin reactivity should receive chemoprophylaxis.
Varicella Zoster And Measles Viral Infections
Varicella and measles can have a serious or even fatal course in non-immune patients receiving corticosteroids, including KENALOG-10. In corticosteroid-treated patients who have not had these diseases or are non-immune, particular care should be taken to avoid exposure to varicella and measles:
- If a KENALOG-10-treated patient is exposed to varicella, prophylaxis with varicella zoster immune globulin (VZIG) may be indicated. If varicella develops, treatment with antiviral agents may be considered.
- If a KENALOG-10-treated patient is exposed to measles, prophylaxis with immunoglobulin (IG) may be indicated.
Hepatitis B Virus Reactivation
Hepatitis B virus reactivation can occur in patients who are hepatitis B carriers treated with immunosuppressive dosages of corticosteroids, including KENALOG-10. Reactivation can also occur infrequently in corticosteroid-treated patients who appear to have resolved hepatitis B infection.
Screen patients for hepatitis B infection before initiating immunosuppressive (e.g., prolonged) treatment with KENALOG-10. For patients who show evidence of hepatitis B infection, recommend consultation with physicians with expertise in managing hepatitis B regarding monitoring and consideration for hepatitis B antiviral therapy.
Fungal Infections
Corticosteroids, including KENALOG-10, may exacerbate systemic fungal infections; therefore, avoid KENALOG-10 use in the presence of such infections unless KENALOG-10 is needed to control drug reactions. For patients on chronic KENALOG-10 therapy who develop systemic fungal infections, KENALOG-10 withdrawal or dosage reduction is recommended.
Amebiasis
Corticosteroids, including KENALOG-10, may activate latent amebiasis. Therefore, it is recommended that latent amebiasis or active amebiasis be ruled out before initiating KENALOGÂ10 in patients who have spent time in the tropics or patients with unexplained diarrhea.
Strongyloides Infestation
Corticosteroids, including KENALOG-10, should be used with great care in patients with known or suspected Strongyloides (threadworm) infestation. In such patients, corticosteroid-induced immunosuppression may lead to Strongyloides hyperinfection and dissemination with widespread larval migration, often accompanied by severe enterocolitis and potentially fatal gram-negative septicemia.
Cerebral Malaria
Avoid corticosteroids, including KENALOG-10, in patients with cerebral malaria.
Vaccination
Administration of live or live, attenuated vaccines is contraindicated in patients receiving immunosuppressive doses of corticosteroids. Killed or inactivated vaccines may be administered. However, the response to such vaccines cannot be predicted. Immunization procedures may be undertaken in patients who are receiving corticosteroids as replacement therapy, e.g., for Addison’s disease.
Neurologic
Epidural and intrathecal administration of this product is not recommended. Reports of serious medical events, including death, have been associated with epidural and intrathecal routes of corticosteroid administration (see ADVERSE REACTIONS: Gastrointestinal and Neurologic/Psychiatric).
Ophthalmic
Use of corticosteroids may produce posterior subcapsular cataracts, glaucoma with possible damage to the optic nerves, and may enhance the establishment of secondary ocular infections due to bacteria, fungi, or viruses. The use of oral corticosteroids is not recommended in the treatment of optic neuritis and may lead to an increase in the risk of new episodes. Corticosteroids should not be used in active ocular herpes simplex.
Adequate studies to demonstrate the safety of KENALOG-10 Injection use by intraturbinal, subconjunctival, sub-Tenons, retrobulbar, and intraocular (intravitreal) injections have not been performed. Endophthalmitis, eye inflammation, increased intraocular pressure, and visual disturbances including vision loss have been reported with intravitreal administration. Administration of KENALOG-10 Injection intraocularly or into the nasal turbinates is not recommended.
Intraocular injection of corticosteroid formulations containing benzyl alcohol, such as KENALOG-10 Injection, is not recommended because of potential toxicity from the benzyl alcohol.
Kaposi’s Sarcoma
Kaposi’s sarcoma has been reported to occur in patients receiving corticosteroid therapy, most often for chronic conditions. Discontinuation of corticosteroids may result in clinical improvement of Kaposi’s sarcoma.