About this product
The syrup identifies Sambucus nigra berry extract at 50 mg and references anthocyanins. No concentration ratio or marker percentage is supplied, leaving the actual extract strength uncertain.
Vitamin C and zinc gluconate add basic nutritional support, while a 239 mg proprietary blend hides its individual ingredients and doses. That blend may contain additional botanicals, but its contribution and interactions cannot be judged.
The liquid serving includes four grams of carbohydrate and 15 calories. It may suit pill-averse users, although the opaque blend makes a simpler syrup more attractive.
Pros
Identifies Sambucus nigra berry extract Includes vitamin C and zinc Convenient syrup format
Cons
Only 50 mg of disclosed elderberry Proprietary blend hides individual doses Adds four grams of carbohydrate
Warnings
The proprietary blend prevents a complete allergy and medication-interaction assessment. Zinc can bind tetracycline or quinolone antibiotics, so these medicines should be taken several hours apart. Elderberry concentrates can cause nausea, abdominal discomfort, or loose stools in sensitive users.

