Elderberry Flower Compound (Previously Respiratory & Sinus Antiviral Support Drops)
A European historic trusted traditional studied herbal recipe - a plant combination of Gentian root, Primrose flowers, Yellowdock herb, Elder flowers, and Vervain to help promote mucus drainage from the sinuses and clear mucus from the respiratory tract. 
SEE STUDIES BELOW.
This combination has been found to be useful in helping to promote mucus drainage ("mucolytic" action) from the sinuses -- clearing mucous from upper and lower respiratory tract. This is a unique herbal combination used to relieve sinusitis or acute and chronic bronchitis. 
 
PLUS – this herbal combination offers a profound anti viral effect.
 
This herbal extracted formula was studied in vitro against a broad panel of both enveloped and non-enveloped human pathogenic RNA and DNA viruses known to cause infections of the upper respiratory tract: influenza A, Chile 1/83 (H1N1) virus (FluA), Porcine Influenza A/California/07/2009 (H1N1) virus (pFluA), parainfluenza type 3 virus (Para 3), respiratory syncytial virus, strain Long (RSV), human rhinovirus B subtype 14 (HRV 14), coxsackievirus subtype A9 (CA9), and adenovirus C subtype 5 (Adeno 5).
Remarkable antiviral activity was shown against Adeno 5, HRV 14 and RSV viruses. 
 
 
How Elderberry Flower Compound is used for best results:
 
Time of use would be 7 days to 21 days
 
50 ml glass dropper bottle (1 adult would need 1 bottle for 1-week use)
 
Adults—2 dropperfuls, 3 times per day in a little water
Children— (6-12 years)—25 drops, 3 times per day in a little water
Children— (2-6 years)—15 drops, 3 times per day in a little water
 
There have been no studies for use during pregnancy 
Use during breastfeeding is acceptable
 
 
Elderberry Flower Compound contains EXTRACTS of 5 herbs:
Elder (Sambucus nigra) flowers, Primrose (Primula veris) flowers with calyx,  Rumex acetosa herb, European Vervain (Verbena officinalis) herb, and Gentian (Gentiana lutea) root - 1:2 ratio - 50% gluten free spirits 
 
There is no effect on the blood alcohol content after taking  Elderberry Flower Compound at the suggested dropperfuls or drops. This conclusion from the fact that fruit juice contains naturally occurring ethanol (< 0.1-0.5% by volume) and that the intake of Elderberry Flower -  alcohol associated with  is comparable, or smaller, than the intake with fruit juice or a ripe peice of fruit.  Blood alcohol concentrations after intake of very small amounts of alcohol are insignificant or irrelevant.
 
STUDY Sources:
The effect of a herbal combination of primrose, gentian root, vervain, elder flowers, and yellowdock -
https://pubmed.ncbi.nlm.nih.gov/22112724/
https://www.sciencedirect.com/topics/medicine-and-dentistry/sinupret