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Sinulex® Forte: An Integrated Approach to Throat, Respiratory, and Sinus Support

Updated: Sep 6, 2023

Here we will discuss the role of L-ascorbic acid, Zinc ions (Zn2+), and the various bioactive compounds in the plant extracts we use to formulate the range of Sinulex® Forte™ health products, such as the capsules, effervescent tablets, and syrup.


At Tara Pharmaceuticals, we understand the challenges that individuals face during cold and flu season or when dealing with respiratory discomfort. That's why we developed a unique range of Sinulex® products, each formulated to cater to different preferences and needs, providing effective support for the throat, respiratory system, and paranasal sinuses, while offering immune support against colds and flu.


The Sinulex® Forte™ product range consists of formulations that are standardized to ensure the research-backed active ingredients and their active moieties provide the most effective support possible and that the substances are safe when used as directed. The extracts are potent and the combination is specifically designed, while relying on GxP systems, and more specifically cGMP practice standards, to ensure quality and safety of the potent ingredients are controlled at every turn. This is to strike an optimal equipoise between safety and effectiveness in the Sinulex® Forte™ dosage forms, such as the capsules, effervescent tablets, and syrup. Let's begin with a brief overview of each product in the range:


Sinulex® Forte Capsules:

Sinulex® Forte Capsules offer a convenient and targeted approach to supporting the respiratory system and sinus health. The formulation contains key ingredients such as L-ascorbic acid (Vitamin C) and Zinc, which are known for their immune-boosting properties. Vitamin C plays a crucial role in supporting the immune system, while Zinc helps enhance the body's defense mechanisms against viruses and bacteria. Additionally, the inclusion of Horseradish and Pelargonium further supports respiratory health, helping to soothe the throat and maintain clear airways.


Sinulex® Forte Capsules:

Sinulex® Forte Capsules offer a convenient and targeted approach to supporting the respiratory system and sinus health. The formulation contains key ingredients such as L-ascorbic acid (Vitamin C) and Zinc, which are known for their immune-boosting properties. Vitamin C plays a crucial role in supporting the immune system, while Zinc helps enhance the body's defense mechanisms against viruses and bacteria. Additionally, the inclusion of Horseradish and Pelargonium further supports respiratory health, helping to soothe the throat and maintain clear airways.


Sinulex® Forte 100ml Syrup:

Sinulex® Forte Syrup is designed to provide relief and support for various respiratory discomforts, such as coughs and throat irritation. The unique combination of herbal extracts, including Cowslip, Elderflower, and Yellow gentian, helps to soothe irritated airways and maintain a healthy respiratory system. This liquid formulation is particularly suitable for those who prefer a soothing and gentle option, especially for children or those who may have difficulty swallowing capsules or tablets.


Understanding the Science Behind the Substance

It's often misleading when information about natural ingredients are easily mischaracterized as being inherently safe to use in any way solely on the basis of the ingredients being plant-based, which is not the case. Not when the potency of plant extracts, albeit a natural source, contain active moieties that have powerful pharmacodynamic and pharmacokinetic effects, as constituents within specific active ingredients. This is something that cannot be ignored as the overall wellbeing of the individual relying on a medicine always comes first.


This is why we pay careful attention to what goes into each capsule, effervescent tablet, or drop of syrup in the Sinulex® Forte™ range. We recognize the power of nature, and the importance of respecting the equipoise between safety and effectiveness when it comes to using potent plant-based medicinal extracts.

  • Vitamin C is a water-soluble antioxidant that readily donates electrons to neutralize free radicals, reactive oxygen species (ROS), and reactive nitrogen species (RNS). By acting as an electron donor, L-ascorbic acid helps protect immune cells and other tissues from oxidative damage. Additionally, Vitamin C enhances the activity of certain immune cells, such as neutrophils and macrophages, by promoting their migration and phagocytic function. It also supports the differentiation and proliferation of T and B lymphocytes, crucial for adaptive immune responses.

  • Zinc plays a vital role in the function and regulation of immune cells. It influences intracellular signaling pathways, such as NF-κB, which controls the expression of genes involved in immune responses. Zinc is essential for the development and maturation of T cells, including thymic function and T cell receptor signaling. Moreover, it enhances the activity of natural killer cells and neutrophils, enabling them to eliminate pathogens more effectively. Zinc's antiviral effects include inhibiting viral replication through interference with RNA polymerases of certain viruses, reducing viral infectivity, and modulating viral-host interactions.

  • Horseradish contains biologically active compounds, such as isothiocyanates, flavonoids, and polyphenols, which exhibit antimicrobial, anti-inflammatory, and expectorant properties. These compounds stimulate ciliary beating and mucociliary clearance in the respiratory tract, promoting the removal of mucus and pathogens.

  • Pelargonium contains unique constituents, including umckalin and other polyphenolic compounds, which possess antibacterial and antiviral properties. Pelargonium has been shown to interfere with the attachment and entry of respiratory viruses into host cells, thus inhibiting viral replication.

  • Echinacea's immunomodulatory effects are attributed to its diverse bioactive compounds. Alkamides and caffeic acid derivatives interact with cannabinoid receptors CB1 and CB2, enhancing immune cell migration and cytokine production. Polysaccharides stimulate the activation and proliferation of immune cells, including macrophages, natural killer cells, and T cells, through interactions with toll-like receptors (TLRs). Echinacea's immunostimulatory properties lead to increased host defenses against respiratory pathogens.

  • Cowslip, Elderflower, and Yellow Gentian contain compounds like flavonoids, saponins, and phenolic acids, which possess anti-inflammatory and antioxidant properties. These compounds can modulate inflammatory pathways, such as NF-κB and MAPK, leading to a reduction in pro-inflammatory cytokines. Additionally, the soothing effects of these herbs help alleviate respiratory irritation and discomfort.

Understanding the Synergy:

Each Sinulex® product in our range is carefully formulated to complement one another, ensuring a comprehensive approach to throat, respiratory, and sinus support. The different dosage forms allow individuals to choose the most suitable option based on their preferences and specific needs. The collective benefits of the Sinulex® products lie in their ability to:

  1. Strengthen the Immune System: Vitamin C, Zinc, and Echinacea play pivotal roles in boosting the immune system, helping the body ward off potential infections and viruses.

  2. Support Respiratory Health: Ingredients like Pelargonium, Horseradish, and Echinacea assist in maintaining clear airways, easing respiratory discomfort, and supporting overall lung health.

  3. Soothe Throat Irritation: The herbal extracts in Sinulex® Forte Syrup, such as Cowslip and Elderflower, work together to provide soothing relief to the throat.

  4. Protect Against Colds and Flu: By fortifying the body's defenses and promoting respiratory health, the Sinulex® products contribute to reducing the risk of colds and flu.

The combination of these ingredients in the Sinulex® products works synergistically to provide comprehensive support for the throat, respiratory system, and paranasal sinuses, as well as protection against colds and flu.

  • Vitamin C and Zinc boost the immune system, helping the body defend against infections.

  • Horseradish and Pelargonium help clear the respiratory passages, reduce congestion, and inhibit viral attachment.

  • Echinacea supports the immune system and provides additional protection against respiratory infections.

  • Cowslip, Elderflower, and Yellow Gentian soothe throat irritation and promote respiratory comfort.

Together, these ingredients form a powerful arsenal against respiratory challenges, making Sinulex® products effective allies in maintaining respiratory health and fortifying the body's defenses during cold and flu season.


The Sinulex® product range represents our commitment to providing comprehensive and effective support for the throat, respiratory system, and paranasal sinuses. Whether you prefer capsules, effervescent tablets, or syrup, each product is carefully crafted to work individually or synergistically, depending on your preferences and needs. Your health and well-being are at the forefront of everything we do, and we hope that our Sinulex® products can bring you comfort and relief during challenging times while supporting your overall respiratory health.


As always, it is advisable to consult with a healthcare professional for personalized guidance on product usage and dosage.

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