Evidence supporting the use of: Syrup
For the health condition: Congestion (bronchial)
Synopsis
Source of validity: Scientific
Rating (out of 5): 3
Syrups are commonly used to treat bronchial congestion, primarily as a delivery vehicle for active ingredients such as expectorants (e.g., guaifenesin), cough suppressants, or mucolytics. The scientific basis for their use lies not in the syrup itself, but in the efficacy of these active compounds. Expectorant syrups containing guaifenesin have moderate-quality evidence supporting their ability to increase mucus clearance and relieve congestion in acute respiratory tract infections. Clinical guidelines and systematic reviews indicate that guaifenesin can reduce the viscosity of bronchial secretions, facilitating easier expectoration and thereby alleviating symptoms of congestion. However, the effect size is generally modest, and some studies highlight a placebo effect or variable patient responses.
Syrup formulations also offer advantages in terms of patient compliance, especially for children and those who have difficulty swallowing pills. The sweet, viscous nature of syrup soothes the throat and masks the unpleasant taste of active ingredients, although this effect is supportive rather than therapeutic for bronchial congestion itself. While syrups as a base have no direct decongestant or expectorant action, their widespread use and moderate scientific support for the included actives justify their role in the management of bronchial congestion.
Other ingredients used for Congestion (bronchial)
allspicealoe vera
alpha-pinene
waterhyssop
basil
benegut perilla (proprietary)
beta-pinene
black cumin
black currant
black pepper
Indian frankincense
bupleurum falcatum
bасора
caffeine
capsaicinoids
chamomile
chen pi
Chinese salvia root
clove
Coptis chinensis
cowage seed
turmeric
echinacea purpurea
elderberry
ethanol
forsythia
garlic bulb
ginger
grape
onion
green tea
horseradish
Indian tinospora
licorice root
lovage
mustard seed
n-acetyl-cysteine (NAC)
spruce
ophiopogon root
oregano
perilla
phellodendron amurense
platycodon root
pomegranate
quercetin
rosemary
scrophularia root
shiitake mushroom
spearmint leaf
sphaeranthus indicus
thyme
vitamin C
yellow root
squawvine
boneset
mullein
hyssop
cardamom
atractylodes
capsicum
mugwort
malabar nut
alpinia galangal
ferula assafoetida
inula racemosa
anise
blackboard tree
lingusticum wallichii
buckthorn
fritillaria
lemongrass
yerba santa
elecampane
coltsfoot
chrysanthemum
juniper berries
siler root
sweet flag
oriental arborvitae
trichosanthes
zanthoxylum
eucalyptus
menthol oil
aster root
abies spectabilis
horehound
Sichuan pepper
cayenne pepper
soursop
Alcohol
Agastache
Anamarrhena
Alpha-terpineol
Ardisia
Angelica
Allicin
Asarum heterotropoides
Aconite
Asafoetida
Andrographolide
Adrenergic amines
Asteracea
Allyl Sulfide
Adenophora
Allium tuberosum
Amor seco
Arisaema
Asarum sieboldii
Alantolactone
Atractylone
Black Seed
Baikal Skullcap
Baphicacanthus cusia
Bidens pilosa
Black spruce
Bicarbonate
Blepharis
Balsam
Bishop's Weed
Boswellic Acid
Bayleaf
Black galingale
Barleria
Bitter Grass
Bisabolene
Bael
berry
Boswellia
Baccharoides anthelmintica
black salt
Bee products
Bombax
Buddha's Hand
Borage
Bupleurum
Balloon Flower
Belamcanda
Borneol
Camellia sinensis
Chinese Silkvine
Curry leaf
Chinese Mountain Ant
Clerodendrum trichotomum
Citrus
Cineole
Cajuput
Chinese Raisintree
Cowherb
Curcumen
Cistus
Curcuma
Calamus
Cinnamaldehyde
Carthamus
Culvers Root
Chondrus
Dragonhead
Diterpenes
Ephedra
European Elder
Eclipta
Echinacea
Elder
Essential Oil Blend
Ephedrine
Galangal
Ivy
Mustard
Mallow
Sandalwood
Vervain