HFA 134a

Known as: HFA-134a, hydrofluoroalkane-134a 
 
National Institutes of Health

Topic mentions per year

Topic mentions per year

1991-2017
051019912017

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2008
2008
The goals of this study were to determine the solubility values of solid organic solutes in pure HFA-134a and in HFA-134a/ethanol… (More)
Is this relevant?
2004
2004
Purpose. To assess the physicochemical characteristics and aerosol properties of suspensions of lipid-coated budesonide… (More)
  • figure 1
  • figure 2
  • table I
  • figure 3
  • table II
Is this relevant?
2003
2003
The purpose of this research was to investigate the measurement and in vitro delivery implications of multimodal distributions… (More)
  • table 1
  • figure 1
  • figure 2
  • figure 3
  • figure 4
Is this relevant?
2001
2001
This paper describes a technique that uses a well-defined human airway replica and gamma counting as a standard method for… (More)
Is this relevant?
2000
2000
Chlorofluorocarbon (CFC)-containing inhalers for use in the treatment of asthma are to be phased out under the terms of the… (More)
Is this relevant?
2000
2000
AIM The replacement of chlorofluorocarbon (CFC) by hydrofluoroalkane has the potential to improve airway deposition of BDP. We… (More)
Is this relevant?
Highly Cited
1998
Highly Cited
1998
Hydrofluoroalkane-134a (HFA) beclomethasone dipropionate (BDP) was formulated in a metered-dose inhaler (MDI) to deliver a… (More)
  • table 1
  • table 2
  • figure 1
  • figure 2
  • table 3
Is this relevant?
1996
1996
A 28-day double-blind parallel group study has been conducted to compare the safety and tolerability of HFA-134a, a… (More)
Is this relevant?
1995
1995
The acute safety of the alternative chlorofluorocarbon-free (CFC-free) propellant HFA-134a from a pressurized metered-dose… (More)
  • table 1
  • figure 2
  • figure 1
Is this relevant?
1995
1995
1. Groups of 60 male and 60 female B6C3F1 mice or HanIbm Wistar rats were exposed to HFA-134a using snout-only inhalation… (More)
Is this relevant?