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Combination Intranasal Corticosteroid + Antihistamine
Treatment for Allergic Rhinitis
Typical Dosage: 1 spray per nostril twice daily (e.g., Azelastine/Fluticasone)
Effectiveness
92%
Safety Score
75%
Clinical Trials
4
Participants
15K
Comparative Safety Scale(Higher is safer)
Cyanide☠️
Meth💀
Cigarettes🚬
Chemo☢️
Alcohol🍺
Morphine💊
Antibiotics💉
Tylenol💊
Exercise🏃
Water💧
75
DangerousModerateSafe
Treatment Details
Dosage Range
1 spray per nostril twice daily (e.g., Azelastine/Fluticasone)
Time to Effect
15-30 minutes for initial, few days for full effect
Treatment Duration
Seasonal or daily as needed
Evidence Quality
HIGHNumber Needed to Treat (NNT)
4(Treat 4 patients to see 1 additional successful outcome)
Number Needed to Harm (NNH)
5(Treat 5 patients to see 1 additional serious adverse event)
Confidence Score
85%confidence in effectiveness data
Health Economics
Annual Cost of Care
Drug Cost:$900
Monitoring:$25
Side Effect Mgmt:$20
Total Annual:$945
Cost-Effectiveness Analysis
Cost-Effectiveness Rating
GOODICER
$75,000/QALY
QALYs Gained
0.1
Outcome-Based Costs
Cost per Responder
$1,111.76
Cost per Remission
$1,890
Comparison vs Intranasal Corticosteroids
Cost Difference
+$730/year
More expensive
QALY Difference
+0.02 QALYs
Better outcomes
Dominance
No dominance
Prescription Access Economics
Annual Societal Loss per Patient
$565
Cost of prescription-only barriers (visits, time, admin, price premium)
Physician Visit Cost
$250/year
Time Cost
$75/year
Travel + wait time
Insurance Admin Cost
$40/year
Prior auth, claims
Rx Price
$900/year
Potential OTC Price
$600/year
Estimated if OTC available
Early Treatment Benefit
+0.03 QALYs
From faster OTC access
Risk Assessment
Misuse Risk
LOWMissed Diagnosis Risk
LOWWARNING: LIMITED TRIALS AVAILABLE
You can search for trials, but you probably can't join any because the 1% Treaty hasn't passed yet. Most trials are severely limited by lack of funding and bureaucratic barriers. Help change this!
Active Clinical Trials
4 active trials recruiting for Combination Intranasal Corticosteroid + Antihistamine in Allergic Rhinitis
A Prospective, Randomized, Controlled Study Comparing the Efficacy of Intranasal Corticosteroids (INCS) Combined With Intranasal Antihistamines (INAH) and INCS Combined With Oral Antihistamines (OAH) in the Treatment of Moderate to Severe Allergic Rhinitis Symptoms
NCT07294326NOT YET RECRUITINGPHASE4
50 participants
INTERVENTIONAL
Started: Jan 1, 2026
Comparison of Antihistamine and Antileukotriene Add-On Therapy to Intranasal Corticosteroid in Allergic Rhinitis
NCT07532993NOT YET RECRUITINGPHASE4
32 participants
INTERVENTIONAL
Karachi, Pakistan
Started: Sep 1, 2026
Comparison of the Effects for Lightening the Shiners Among Different Treatments for Rhinitis
NCT05348148RECRUITINGNA
450 participants
INTERVENTIONAL
Luodong, Taiwan
Started: Jun 16, 2020
Effect of Combined Probiotics and Vitamin D on Symptoms of Allergic Rhinitis
NCT07115342RECRUITINGNA
120 participants
INTERVENTIONAL
Tanta, Egypt
Started: Aug 1, 2025
Completed Clinical Trials
1 completed trial for Combination Intranasal Corticosteroid + Antihistamine in Allergic Rhinitis
Comparison of Seasonal Allergic Rhinitis Treatment With 2 Antihistamines Used in Combination With Intranasal Corticosteroid
NCT00845195COMPLETEDPHASE4
150 participants
INTERVENTIONAL
Fort Worth, United States
Started: Mar 1, 2009