Evidence supporting the use of: Syrup (unspecified)
For the health condition: Cough (dry)
Synopsis
Source of validity: Traditional
Rating (out of 5): 2
Syrup, as an unspecified category (meaning any sweet, viscous liquid preparation), is traditionally used to support or treat dry cough primarily due to its soothing properties. Historically, syrups have been used for centuries in both Western and Eastern medicine as carriers for medicinal ingredients and as standalone remedies for throat irritation. The viscous nature of syrup can coat the mucous membranes of the throat, temporarily reducing irritation and the sensation of tickling that often triggers a dry cough. This demulcent effect is well-acknowledged in historical pharmacopeias and traditional medical practices.
However, while many traditional cough syrups contain active ingredients such as honey, glycerin, or herbal extracts with demulcent or antitussive properties, the syrup base itself (usually sugar or glucose dissolved in water) contributes mainly to symptomatic relief through lubrication and hydration. There is limited scientific evidence specifically validating syrup without active ingredients as an effective treatment for dry cough, but the general principle of demulcents for cough is supported by some studies and reviews. The evidence for plain syrup's efficacy is therefore modest, stemming more from historical use and the physical properties of syrup than from robust clinical trials.
In summary, the use of (unspecified) syrup for dry cough is primarily justified by traditional practice, with some minor scientific rationale for its soothing action yet lacking strong clinical evidence of efficacy.
Other ingredients used for Cough (dry)
aloe veraalpha-pinene
apple
waterhyssop
benegut perilla (proprietary)
beta-pinene
black currant
black pepper
radish
Indian frankincense
cat's claw
Chinese salvia root
cinnamon
clove
cowage seed
turmeric
elderberry
garlic bulb
ginger
glehnia root
greek mountain tea
onion
green tea
heartwood
Indian tinospora
jujube
lemon
licorice root
marshmallow
nettle
ophiopogon root
oregano
parsley
pear
phellodendron amurense
platycodon root
plum fruit
polygala root
pomegranate
thyme
vitamin C
zhejiang fritillary
zinc
sarsaparilla
boneset
mullein
tangerine
hyssop
atractylodes
Indian bael
malabar nut
alpinia galangal
hedychium spicatum
inula racemosa
anise
pistacia integerrima gall
fumaria parviflora
fritillaria
yerba santa
elecampane
dodder
sweet flag
menthol oil
Alcohol
Agastache
Anamarrhena
Ambergris
acacia
Asarum heterotropoides
Aconite
Asafoetida
Aerva lanata
Asam gelugor
Adenophora
Allium tuberosum
Asarum sieboldii
Atractylone
Black Seed
Bermuda Grass
Bryonia
Bayleaf
Bael
Butternut
Baccharoides anthelmintica
black salt
Bee products
Buddha's Hand
banana
Bassia scoparia
Burning Bush
Balloon Flower
Belamcanda
Bergenia
Cactus
Citron
Citrus
Cineole
Capsaicin
Cistus
Cubeb
Cowslip
Chaenomeles lagenaria
Calamus
Cinnamaldehyde
Clerodendrum indicum
Dragonhead
Diterpenes
Dichrostachys glomerata
Echinacea
Elder
Ephedrine
Poppy
Other health conditions supported by Syrup (unspecified)
BronchitisColds (general)
Cough (dry)
Cough (general)
Cough (spastic)
Indigestion
Sore Throat