"What are allergies?
Allergies occur when the body's immune system responds to a substance it considers an "invader." Substances that provoke the immune system into an allergic response are known as allergens. There is no such thing as a"...
Somnolence In Activities Requiring Mental Alertness
In clinical trials, the occurrence of somnolence has been reported in some patients taking Astelin Nasal Spray [see ADVERSE REACTIONS]. Patients should be cautioned against engaging in hazardous occupations requiring complete mental alertness and motor coordination such as operating machinery or driving a motor vehicle after administration of Astelin Nasal Spray. Concurrent use of Astelin Nasal Spray with alcohol or other central nervous system depressants should be avoided because additional reductions in alertness and additional impairment of central nervous system performance may occur [see DRUG INTERACTIONS].
Patient Counseling Information
See FDA-approved patient labeling (PATIENT INFORMATION and Instructions for Use).
Activities Requiring Mental Alertness
Somnolence has been reported in some patients taking Astelin Nasal Spray. Caution patients against engaging in hazardous occupations requiring complete mental alertness and motor coordination such as driving or operating machinery after administration of Astelin Nasal Spray [see WARNINGS AND PRECAUTIONS].
Concurrent Use of Alcohol and other Central Nervous System Depressants
Instruct patients to avoid concurrent use of Astelin Nasal Spray with alcohol or other central nervous system depressants because additional reductions in alertness and additional impairment of central nervous system performance may occur [see WARNINGS AND PRECAUTIONS].
Common Adverse Reactions
Inform patients that the treatment with Astelin Nasal Spray may lead to adverse reactions, which include bitter taste, headache, somnolence, dysesthesia, rhinitis, nasal burning, pharyngitis, epistaxis, sinusitis, paroxysmal sneezing, nausea, dry mouth, fatigue, dizziness, and weight increase [see ADVERSE REACTIONS].
Instruct patients to prime the pump before initial use and when Astelin Nasal Spray has not been used for 3 or more days [see DOSAGE AND ADMINISTRATION].
Keep Spray Out of Eyes
Instruct patients to avoid spraying Astelin Nasal Spray into their eyes.
Keep Out of Children's Reach
Instruct patients to keep Astelin Nasal Spray out of the reach of children. If a child accidentally ingests Astelin Nasal Spray, seek medical help or call a poison control center immediately.
Carcinogenesis, Mutagenesis, Impairment Of Fertility
In 2-year carcinogenicity studies in rats and mice, azelastine hydrochloride did not show evidence of carcinogenicity at oral doses up to 30 mg/kg and 25 mg/kg, respectively. These doses were approximately 150 and 60 times the maximum recommended human daily intranasal dose [MRHDID] on a mg/m² basis.
Azelastine hydrochloride showed no genotoxic effects in the Ames test, DNA repair test, mouse lymphoma forward mutation assay, mouse micronucleus test, or chromosomal aberration test in rat bone marrow.
Reproduction and fertility studies in rats showed no effects on male or female fertility at oral doses up to 30 mg/kg (approximately 150 times the MRHDID in adults on a mg/m² basis). At 68.6 mg/kg (approximately 340 times the MRHDID on a mg/m² basis), the duration of estrous cycles was prolonged and copulatory activity and the number of pregnancies were decreased. The numbers of corpora lutea and implantations were decreased; however, pre-implantation loss was not increased.
Use In Specific Populations
Pregnancy Category C
There are no adequate and well-controlled clinical studies in pregnant women. Azelastine hydrochloride has been shown to cause developmental toxicity in mice, rats, and rabbits. Astelin Nasal Spray should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
In mice, azelastine hydrochloride caused embryo-fetal death, malformations (cleft palate; short or absent tail; fused, absent or branched ribs), delayed ossification, and decreased fetal weight at approximately 170 times the maximum recommended human daily intranasal dose (MRHDID) in adults (on a mg/m² basis at a maternal oral dose of 68.6 mg/kg/day which also caused maternal toxicity as evidenced by decreased body weight). Neither fetal nor maternal effects occurred in mice at approximately 7 times the MRHDID in adults (on a mg/m² basis at a maternal oral dose of 3 mg/kg/day).
In rats, azelastine hydrochloride caused malformations (oligo-and brachydactylia), delayed ossification and skeletal variations, in the absence of maternal toxicity, at approximately 150 times the MRHDID in adults (on a mg/m² basis at a maternal oral dose of 30 mg/kg/day). Azelastine hydrochloride caused embryo-fetal death and decreased fetal weight and severe maternal toxicity at approximately 340 times the MRHDID (on a mg/m² basis at a maternal oral dose of 68.6 mg/kg/day). Neither fetal nor maternal effects occurred at approximately 15 times the MRHDID (on a mg/m² basis at a maternal oral dose of 2 mg/kg/day).
In rabbits, azelastine hydrochloride caused abortion, delayed ossification and decreased fetal weight and severe maternal toxicity at approximately 300 times the MRHDID in adults (on a mg/m² basis at a maternal oral dose of 30 mg/kg/day). Neither fetal nor maternal effects occurred at approximately 3 times the MRHDID (on a mg/m² basis at a maternal oral dose of 0.3 mg/kg/day).
It is not known whether azelastine hydrochloride is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Astelin Nasal Spray is administered to a nursing woman.
The safety and effectiveness of Astelin Nasal Spray for the treatment of symptoms of seasonal allergic rhinitis have been established for patients 5 years and older [see ADVERSE REACTIONS and Clinical Studies]. The safety and effectiveness of Astelin Nasal Spray for the treatment of vasomotor rhinitis have been established for patients 12 years and older [see ADVERSE REACTIONS and Clinical Studies]. The safety and effectiveness of Astelin Nasal Spray in pediatric patients below the age of 5 years with seasonal allergic rhinitis and in pediatric patients below the age of 12 years with vasomotor rhinitis have not been established.
Clinical trials of Astelin Nasal Spray did not include sufficient numbers of patients aged 65 and over to determine whether they respond differently from younger patients. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.This monograph has been modified to include the generic and brand name in many instances.
Last reviewed on RxList: 12/1/2014
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