Overview

SCIENTIFIC SCORE
Questionable
Based on 16 Researches
6.6
USERS' SCORE
Good
Based on 35 Reviews
8.6
Supplement Facts
Serving Size:  1 tsp (820 mg)
Amount Per Serving
%DV
Organic Echinacea Purpurea, cut (herb)
820 mg
*

Top Medical Research Studies

9
Echinacea's promise against colds
In a comprehensive clinical trial, we examined the effectiveness of Echinacea purpurea as a preventative measure against the common cold. This research stands out as the largest of its kind, evaluating both the safety and benefits of Echinacea over a long-term treatment period of four months.

We found that this proprietary extract of Echinacea, known as Echinaforce, proved to be beneficial in several ways. It significantly reduced the total number of cold episodes and the duration of those colds. Additionally, participants required fewer medications to cope with their symptoms, highlighting Echinacea's potential as a natural remedy.

Importantly, the extract showed impressive results, particularly for individuals who often experience recurrent infections. The study also indicated that the more closely individuals followed the recommended protocol, the better the preventive effects. Overall, we feel encouraged by the positive risk-to-benefit ratio of Echinacea purpurea when taken as directed for the common cold.
Read More
9
Echinaforce® shows promise for colds
We explored how Echinaforce®, a standardized extract from the Echinacea purpurea plant, can affect respiratory tract infections, including the common cold. In recent research, this treatment was subjected to a rigorous examination through a randomized, double-blind, placebo-controlled study lasting four months. This methodology is important because it allows for a clear comparison between those receiving the treatment and those receiving a placebo.

During the study, we observed that Echinaforce® exhibits immunomodulatory and broad antiviral effects against various respiratory viruses. Notably, it blocks proteins like Haemagglutinin and Neuraminidase, which are often involved in viral replication. One of the significant advantages of Echinaforce® over traditional antiviral medications, such as Oseltamivir, is that it does not lead to viral resistance.

The findings support the idea that Echinaforce® can enhance immune resistance and offers both long-term and short-term benefits for preventing and treating common cold symptoms. This makes it a promising option for individuals looking for natural ways to boost their immune system and combat viral infections.
Read More
8
Echinacea effective for colds
We conducted a study to explore the safety and effectiveness of Echinacea purpurea in preventing common cold episodes among 755 healthy participants over four months. Participants were randomly assigned to receive either an extract of Echinacea or a placebo, and they diligently recorded any adverse events or cold-related issues in diaries throughout the study period.

Our findings revealed that Echinacea appears to support cold prevention by reducing the number of cold episodes and the overall days spent unwell. Those who used Echinacea experienced fewer occasions requiring pain relief medications and showed a significant decrease in illness due to virally confirmed colds, especially those caused by enveloped viruses. Notably, participants who followed the treatment protocol closely benefitted the most, showing enhanced preventive effects from Echinacea.

Throughout the study, safety was carefully monitored, revealing that the incidence of adverse events was similar between those taking Echinacea and those on placebo. This indicates that Echinacea has a favorable safety profile comparable to taking no active treatment at all.

Overall, regular intake of Echinacea purpurea can offer a valuable boost in our defenses against the common cold, making it a potential natural remedy for those looking to reduce the frequency and severity of colds.
Read More

Most Useful Reviews

8.3
Long-term use
There's debate about echinacea's effectiveness, yet I've taken it daily for twenty-six years since my heart bypass operation, and I haven’t had a common cold since. Sometimes, I feel symptoms coming on, but they resolve quickly.
Read More
9.5
Boosts immunity
Echinacea, traditionally used by indigenous peoples for treating colds and infections, is excellent for boosting immunity. I purchased it for its viral effects. The potency of herbs is notable, and I find them more beneficial than conventional medicines.
Read More
9.5
Immune tea
Echinacea works wonders for boosting immunity during the cold season. I brew it into a tasty tea with pau d'arco, peppermint, and elderberry. My family loves the flavour, and it's effective to fend off sickness, even for the kids.
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 16 Researches
6.6
  • All Researches
9
Echinacea shows potential for colds
We're diving into the effectiveness of Echinacea for children dealing with acute cold and flu symptoms. A total of 79 children, aged between 4 and 12, were included in this study. We randomized them to receive either three or five doses of Echinaforce Junior tablets daily, allowing us to compare the benefits of 1200 mg versus 2000 mg of Echinacea extract.

During the cold episodes, parents diligently recorded their child's respiratory symptoms, while both parents and physicians provided feedback on how well the treatment was tolerated. Our observations revealed that Echinacea was well-received, boasting an impressive tolerability rate of over 96%. On average, cold episodes lasted 7.5 days, and most children fully recovered within 10 days.

Notably, we found that those taking five doses of Echinacea daily experienced a shorter average duration of symptoms, cutting the episode time by about 1.7 days compared to those taking three doses. This effective symptom relief led to low antibiotic prescriptions, with only 4.6% of children needing them. Overall, we see Echinacea tablets as a promising option for managing acute cold episodes in children, especially at higher doses.
Read More
9
Echinacea's promise against colds
In a comprehensive clinical trial, we examined the effectiveness of Echinacea purpurea as a preventative measure against the common cold. This research stands out as the largest of its kind, evaluating both the safety and benefits of Echinacea over a long-term treatment period of four months.

We found that this proprietary extract of Echinacea, known as Echinaforce, proved to be beneficial in several ways. It significantly reduced the total number of cold episodes and the duration of those colds. Additionally, participants required fewer medications to cope with their symptoms, highlighting Echinacea's potential as a natural remedy.

Importantly, the extract showed impressive results, particularly for individuals who often experience recurrent infections. The study also indicated that the more closely individuals followed the recommended protocol, the better the preventive effects. Overall, we feel encouraged by the positive risk-to-benefit ratio of Echinacea purpurea when taken as directed for the common cold.
Read More
9
Echinaforce® shows promise for colds
We explored how Echinaforce®, a standardized extract from the Echinacea purpurea plant, can affect respiratory tract infections, including the common cold. In recent research, this treatment was subjected to a rigorous examination through a randomized, double-blind, placebo-controlled study lasting four months. This methodology is important because it allows for a clear comparison between those receiving the treatment and those receiving a placebo.

During the study, we observed that Echinaforce® exhibits immunomodulatory and broad antiviral effects against various respiratory viruses. Notably, it blocks proteins like Haemagglutinin and Neuraminidase, which are often involved in viral replication. One of the significant advantages of Echinaforce® over traditional antiviral medications, such as Oseltamivir, is that it does not lead to viral resistance.

The findings support the idea that Echinaforce® can enhance immune resistance and offers both long-term and short-term benefits for preventing and treating common cold symptoms. This makes it a promising option for individuals looking for natural ways to boost their immune system and combat viral infections.
Read More
9
Echinacea aids in cold treatment
In our study, we investigated the effectiveness of a multiherbal formula called Immumax, which includes Echinacea, alongside garlic, Nigella sativa oil, Panax ginseng, vitamin C, and zinc, in treating the common cold. Conducted in an outpatient setting, this double-blind, randomized, controlled trial involved 62 participants who exhibited common cold symptoms. They were divided into two groups; one received Immumax, while the other received a placebo.

Our findings revealed that the patients taking Immumax experienced a significant reduction in the duration and severity of their cold symptoms compared to those on the placebo. Specifically, the average time for symptoms to resolve was notably quicker—4 days for Immumax users versus 8 days for the placebo group. Additionally, by day four and eight, there was a significant decrease in overall symptom severity scores among Immumax recipients.

Overall, we can confidently say that the inclusion of Echinacea in the multiherbal formula contributes positively to managing cold symptoms, aiding in quicker recovery. However, it’s essential to note that we didn't isolate the individual effects of Echinacea, so while it seems beneficial within this combination, we can’t definitively attribute all the positive effects solely to Echinacea.
Read More
8
Echinacea boosts cold immunity
We explored the effects of Echinacea purpurea, a popular herbal remedy, on our immune response to the common cold. The study employed advanced techniques to measure how a standardized extract of Echinacea affects THP-1 monocytes, a type of immune cell. Through transcriptome, epigenome, and kinome profiling, we identified significant immunomodulatory effects from the Echinacea treatment.

Our findings revealed that Echinacea stimulates antiviral pathways responsible for activating immune responses. This includes enhancing signaling from interferons, which act as messengers in our immune system, and boosting the activity of pattern recognition receptors, which help identify pathogens. We also observed changes in genes related to inflammation and the body's metabolic processes, indicating a comprehensive strengthening of our innate immunity.

Furthermore, Echinacea treatment was linked to increased DNA methylation at specific genomic sites. This may inhibit the expression of endogenous retroviral sequences, contributing to a protective evolutionary response to viral infections. Such changes suggest that Echinacea may not only help alleviate symptoms but could also reduce the duration of colds caused by various coronaviruses, including new variants like SARS-CoV-2.

Overall, we believe Echinacea purpurea shows promise as a supportive treatment for common colds, particularly in boosting our inherent antiviral defenses during infections.
Read More

User Reviews

USERS' SCORE
Good
Based on 35 Reviews
8.6
  • All Reviews
  • Positive Reviews
  • Negative Reviews
8.3
Long-term use
There's debate about echinacea's effectiveness, yet I've taken it daily for twenty-six years since my heart bypass operation, and I haven’t had a common cold since. Sometimes, I feel symptoms coming on, but they resolve quickly.
Read More
9.5
Boosts immunity
Echinacea, traditionally used by indigenous peoples for treating colds and infections, is excellent for boosting immunity. I purchased it for its viral effects. The potency of herbs is notable, and I find them more beneficial than conventional medicines.
Read More
9.5
Immune tea
Echinacea works wonders for boosting immunity during the cold season. I brew it into a tasty tea with pau d'arco, peppermint, and elderberry. My family loves the flavour, and it's effective to fend off sickness, even for the kids.
Read More
9.5
Flu prevention
I’ve grown fond of blending herbs in teas, including Echinacea. I haven’t caught a cold in over two years, and I believe these herbal remedies help combat both the flu and common cold effectively.
Read More
9.5
Antioxidant properties
Echinacea serves as a powerful antioxidant, boosting immunity and providing anti-inflammatory benefits. It supports quick recovery from various ailments, including the common cold. It holds promise for future uses in treating more serious conditions, though further study is needed.
Read More

Frequently Asked Questions

The common cold is a viral infection of the upper respiratory tract, primarily affecting the nose and throat. It's caused by a variety of viruses, with rhinoviruses being the most prevalent. Symptoms generally include a runny or stuffy nose, sore throat, cough, sneezing, mild headache, and sometimes a low-grade fever. While the common cold is often mild and resolves on its own within a week or two, it can still be bothersome and impact daily activities.

Transmission occurs through respiratory droplets when an infected person coughs or sneezes, or by touching surfaces contaminated with the virus. Preventative measures include frequent handwashing, using hand sanitizer, and avoiding close contact with infected individuals. Since there is currently no cure for the common cold, treatment focuses on symptom relief through over-the-counter medications, adequate rest, and hydration. While colds may be uncomfortable, they are generally not serious; however, seeking medical attention may be necessary if symptoms worsen or persist for an extended period.

Herbal tea is a beverage made by infusing herbs, spices, flowers, or other plant materials in hot water, resulting in a flavorful and aromatic drink that is often caffeine-free. Unlike traditional tea, which comes from the leaves of the Camellia sinensis plant, herbal teas can be created from a variety of botanicals. Common ingredients include chamomile, peppermint, ginger, hibiscus, and rooibos, each offering its unique taste and potential health benefits.

Herbal teas have been consumed for centuries not only for their diverse flavors but also for their medicinal properties. Many varieties are believed to aid in digestion, promote relaxation, or boost the immune system, though it’s essential to approach these claims critically and consult health professionals when necessary. Whether you are looking to unwind after a long day or simply enjoy a warm beverage, herbal teas provide an extensive range of options to suit varying taste preferences and wellness goals.

Herbal tea can be a soothing remedy for common cold symptoms, providing warmth and hydration, which are essential for recovery. Many herbal teas contain ingredients known for their potential to boost the immune system and alleviate uncomfortable symptoms. For instance, chamomile tea may help reduce congestion and promote relaxation, while ginger tea is praised for its anti-inflammatory properties. Peppermint tea, rich in menthol, can act as a natural decongestant, helping to clear nasal passages and soothe a sore throat.

However, it's important to note that while herbal teas can offer symptomatic relief, they are not a cure for the common cold. Staying hydrated, resting, and eating a balanced diet are crucial components of recovery. Always consult with a healthcare professional if you have concerns about symptoms or if they persist. For those looking to blend home remedies with traditional approaches, herbal teas can be a comforting addition to your cold-fighting arsenal.

Based on user reviews, many individuals report experiencing benefits from echinacea within a relatively short time frame. For some users, relief begins as soon as they notice the first signs of a common cold, with specific mention of feeling better within a day or two of taking it, as seen in reviews where users noted significant improvements in just two days of use (Read Review). Others have indicated that drinking echinacea tea at the onset of symptoms leads to rapid alleviation of discomfort and recovery (Read Review).

Moreover, long-term users have voiced that consistent intake of echinacea can bolster immunity and help in preventing colds altogether ((Read Review)), suggesting that while immediate relief is possible, the best effects may come with regular consumption over time. Overall, users tend to find that echinacea can be quite effective both for prevention and for managing cold symptoms, typically revealing benefits in a short span of use.

Research on Echinacea, particularly Echinacea purpurea, has yielded mixed results regarding its effectiveness in managing the common cold. Some studies highlight its potential to enhance immune responses and alleviate symptoms. For instance, a study found that Echinacea purpurea administers significant immunomodulatory effects, suggesting it could enhance antiviral defenses and even shorten the duration of cold symptoms due to coronaviruses, including SARS-CoV-2 [1]. Another trial indicated that children taking Echinacea experienced a reduction in the duration of cold episodes and fewer antibiotic prescriptions, highlighting its positive impact on symptom relief [2].

However, not all studies have found strong evidence supporting Echinacea's efficacy. Several trials suggest that while there may be slight benefits, they are not robust enough to endorse Echinacea as a reliable standalone treatment for the common cold [3]. A systematic review of multiple studies revealed no significant advantages for Echinacea compared to placebo, and, notably, it was often outperformed by other herbal remedies [7]. Thus, while Echinacea may offer some benefits for specific populations, the overall scientific consensus remains cautious, suggesting further research is needed to clarify its role in cold prevention and treatment.

According to user reviews, many individuals report significant improvements in their symptoms when using echinacea, particularly when taken at the first sign of a cold. Several users indicate that they experience quick recovery times, with one noting feeling better in just two days of use (Read Review). Another user mentioned that after integrating echinacea into their family’s routine, they found it effective at fending off sickness, especially during the cold season (Read Review).

In addition to short-term relief from symptoms, long-term users have observed a marked decrease in the frequency of colds over the years. For instance, one user reported not having a common cold since incorporating echinacea into their daily routine 26 years ago (Read Review). Other users have noted that consistent use helps strengthen immunity not only against common colds but also other respiratory issues and general infections (Read Review). While individual results can vary, these anecdotal experiences suggest potential benefits of using echinacea for both immediate and long-term immune support.

Users report positive experiences when combining echinacea with other supplements or herbs to combat the common cold. For instance, one user commented on the effectiveness of blending echinacea with elderberry and rose hip, stating that the results during cold symptoms were highly satisfactory (Read Review). Another user who enjoys making teas combines echinacea with pau d'arco and peppermint, noting that it not only tastes good but also effectively fends off sickness for their family, including children (Read Review).

Additionally, users have found success in using echinacea alongside other immune boosters. One review highlighted that mixing echinacea with black tea and spices creates a delightful chai flavor while helping to prevent common colds (Read Review). Such combinations seem to enhance the overall effectiveness of immune support, allowing users to experience quicker recoveries and a reduced incidence of colds when these supplements are taken together (Read Review).

Based on user reviews, there appears to be a general consensus on the effective dosage for herbal tea containing Echinacea when treating common colds. Many users recommend a preparation method involving one tablespoon of Echinacea to approximately 250ml of boiling water, steeped to create a soothing tea (Read Review). Users express satisfaction with this method, noting its effectiveness in alleviating symptoms and boosting immunity during cold season (Read Review).

Some users emphasize the need for consistent use, brewing the tea daily, especially at the onset of cold symptoms (Read Review). However, there is also a caution about limiting intake to no more than two weeks, as users have noted diminished effectiveness beyond that time frame (Read Review). Overall, the feedback suggests that a daily cup (or more) of Echinacea tea can be a practical approach to enhance immunity and potentially mitigate the severity of a common cold.

9.5
Cold relief
I love using this product for colds, alongside whole elderberries and astragalus root. It typically helps me recover in two days, and my kids love the flavour too.
8.8
Immediate aid
I found it very effective. At the first sign of a common cold, it helped me considerably.
9.5
Antioxidant properties
Echinacea serves as a powerful antioxidant, boosting immunity and providing anti-inflammatory benefits. It supports quick recovery from various ailments, including the common cold. It holds promise for future uses in treating more serious conditions, though further study is needed.
9.5
Immune tea
Echinacea works wonders for boosting immunity during the cold season. I brew it into a tasty tea with pau d'arco, peppermint, and elderberry. My family loves the flavour, and it's effective to fend off sickness, even for the kids.
8.3
Long-term use
There's debate about echinacea's effectiveness, yet I've taken it daily for twenty-six years since my heart bypass operation, and I haven’t had a common cold since. Sometimes, I feel symptoms coming on, but they resolve quickly.
8.8
Effective remedy
Adding elderberry and rose hip improves the drink when cold symptoms arise; the results have been highly satisfactory.
6.8
Unique taste
It has a rather bitter yet medicinal taste. While it’s hard to drink alone, I mix it with black tea and spices for a delightful chai flavour, which helps prevent common colds.
9.5
Caffeine-free tea
I make this tea as a caffeine-free option. Simply add 1 tbsp to 250ml of boiling water, steep, and serve. It’s excellent against infections and common colds.
8.8
Strengthens immunity
Echinacea is well-known for enhancing the immune system and aiding the body against pathogens. I use it during the common cold season, brewing a litre each day for my family. Research suggests that regular intake reduces the risk of developing colds by 55%. For my children, I use ChildLife Echinacea drops, ensuring they have no allergies.
9
Essential for colds
The flavour is clean with no strange bits like bugs or stems. I always keep it handy for colds or flu. However, I limit my use to no more than two weeks, as its effectiveness diminishes after that.
8
Echinacea boosts cold immunity
We explored the effects of Echinacea purpurea, a popular herbal remedy, on our immune response to the common cold. The study employed advanced techniques to measure how a standardized extract of Echinacea affects THP-1 monocytes, a type of immune cell. Through transcriptome, epigenome, and kinome profiling, we identified significant immunomodulatory effects from the Echinacea treatment.

Our findings revealed that Echinacea stimulates antiviral pathways responsible for activating immune responses. This includes enhancing signaling from interferons, which act as messengers in our immune system, and boosting the activity of pattern recognition receptors, which help identify pathogens. We also observed changes in genes related to inflammation and the body's metabolic processes, indicating a comprehensive strengthening of our innate immunity.

Furthermore, Echinacea treatment was linked to increased DNA methylation at specific genomic sites. This may inhibit the expression of endogenous retroviral sequences, contributing to a protective evolutionary response to viral infections. Such changes suggest that Echinacea may not only help alleviate symptoms but could also reduce the duration of colds caused by various coronaviruses, including new variants like SARS-CoV-2.

Overall, we believe Echinacea purpurea shows promise as a supportive treatment for common colds, particularly in boosting our inherent antiviral defenses during infections.
9
Echinacea shows potential for colds
We're diving into the effectiveness of Echinacea for children dealing with acute cold and flu symptoms. A total of 79 children, aged between 4 and 12, were included in this study. We randomized them to receive either three or five doses of Echinaforce Junior tablets daily, allowing us to compare the benefits of 1200 mg versus 2000 mg of Echinacea extract.

During the cold episodes, parents diligently recorded their child's respiratory symptoms, while both parents and physicians provided feedback on how well the treatment was tolerated. Our observations revealed that Echinacea was well-received, boasting an impressive tolerability rate of over 96%. On average, cold episodes lasted 7.5 days, and most children fully recovered within 10 days.

Notably, we found that those taking five doses of Echinacea daily experienced a shorter average duration of symptoms, cutting the episode time by about 1.7 days compared to those taking three doses. This effective symptom relief led to low antibiotic prescriptions, with only 4.6% of children needing them. Overall, we see Echinacea tablets as a promising option for managing acute cold episodes in children, especially at higher doses.
We explored the effects of echinacea on cough, particularly in relation to upper respiratory infections and the common cold. Our review focused on various studies that tested echinacea alongside other herbal treatments.

The findings indicated that although echinacea was examined across multiple trials, the evidence supporting its effectiveness was classified as limited. In fact, it showed a slight improvement in alleviating cough symptoms, but it did not stand out as a major player compared to other herbal remedies like Andrographis paniculata or ivy-based preparations, which demonstrated stronger evidence of effectiveness.

While we can appreciate the interest in echinacea for cold symptoms, it’s important for us to acknowledge that the research does not provide strong support for its use as a standalone treatment for cough. This means that while echinacea might assist in some cases, it is not the most potent option available according to the current evidence.
We investigated the effectiveness of echinacea preparations in preventing and treating the common cold. Our exploration included 24 double-blind trials with nearly 4,700 participants, comparing different echinacea products to placebo treatments.

The trials varied in quality, with some showing low risk of bias while others had high risk. Unfortunately, despite our thorough analysis, we found no significant benefits of echinacea for preventing or treating colds. Specifically, trials aimed at prevention did not show a statistical advantage, although there was a slight trend suggesting a possible 10% to 20% risk reduction.

In terms of treatment, only one of the seven trials showed echinacea having any effect on the duration of colds. Additionally, the number of participants leaving the studies due to adverse effects was similar between echinacea and placebo groups. Overall, we conclude that echinacea products haven’t convincingly demonstrated effectiveness for cold relief, even if there are faint hints of potential benefit.

References

  1. Declerck K, Novo CP, Grielens L, Van Camp G, Suter A, et al. Echinacea purpurea (L.) Moench treatment of monocytes promotes tonic interferon signaling, increased innate immunity gene expression and DNA repeat hypermethylated silencing of endogenous retroviral sequences. BMC Complement Med Ther. 2021;21:141. doi:10.1186/s12906-021-03310-5
  2. Weishaupt R, Bächler A, Feldhaus S, Lang G, Klein P, et al. Safety and Dose-Dependent Effects of for the Treatment of Acute Cold Episodes in Children: A Multicenter, Randomized, Open-Label Clinical Trial. Children (Basel). 2020;7. doi:10.3390/children7120292
  3. Wagner L, Cramer H, Klose P, Lauche R, Gass F, et al. Herbal Medicine for Cough: a Systematic Review and Meta-Analysis. Forsch Komplementmed. 2015;22:359. doi:10.1159/000442111
  4. Ross SM. Echinacea purpurea: A Proprietary Extract of Echinacea purpurea Is Shown to be Safe and Effective in the Prevention of the Common Cold. Holist Nurs Pract. 2016;30:54. doi:10.1097/HNP.0000000000000130
  5. Barth A, Hovhannisyan A, Jamalyan K, Narimanyan M. Antitussive effect of a fixed combination of Justicia adhatoda, Echinacea purpurea and Eleutherococcus senticosus extracts in patients with acute upper respiratory tract infection: A comparative, randomized, double-blind, placebo-controlled study. Phytomedicine. 2015;22:1195. doi:10.1016/j.phymed.2015.10.001
  6. Karsch-Völk M, Barrett B, Linde K. Echinacea for preventing and treating the common cold. JAMA. 2015;313:618. doi:10.1001/jama.2014.17145
  7. Karsch-Völk M, Barrett B, Kiefer D, Bauer R, Ardjomand-Woelkart K, et al. Echinacea for preventing and treating the common cold. Cochrane Database Syst Rev. 2014;2014:CD000530. doi:10.1002/14651858.CD000530.pub3
  8. Schapowal A. Efficacy and safety of Echinaforce® in respiratory tract infections. Wien Med Wochenschr. 2013;163:102. doi:10.1007/s10354-012-0166-0
  9. Jawad M, Schoop R, Suter A, Klein P, Eccles R. Safety and Efficacy Profile of Echinacea purpurea to Prevent Common Cold Episodes: A Randomized, Double-Blind, Placebo-Controlled Trial. Evid Based Complement Alternat Med. 2012;2012:841315.
  10. Barrett B, Brown R, Rakel D, Rabago D, Marchand L, et al. Placebo effects and the common cold: a randomized controlled trial. Ann Fam Med. 2011;9:312. doi:10.1370/afm.1250
  11. Mathes A, Bellanger R. Herbs and other dietary supplements: current regulations and recommendations for use to maintain health in the management of the common cold or other related infectious respiratory illnesses. J Pharm Pract. 2010;23:117. doi:10.1177/0897190009358711
  12. Arroll B. Common cold. BMJ Clin Evid. 2011;2011.
  13. Yakoot M, Salem A. Efficacy and safety of a multiherbal formula with vitamin C and zinc (Immumax) in the management of the common cold. Int J Gen Med. 2011;4:45. doi:10.2147/IJGM.S16266
  14. Nahas R, Balla A. Complementary and alternative medicine for prevention and treatment of the common cold. Can Fam Physician. 2011;57:31.
  15. Bieuvelet S, Seyrig C, Leclerc C. [A preliminary survey on the interest of eating probiotics, cypress and echinacea to prevent the apparition of winter infections]. Phytotherapie (Paris). 2011;9:120. doi:10.1007/s10298-011-0613-x
  16. Barrett B, Brown R, Rakel D, Mundt M, Bone K, et al. Echinacea for treating the common cold: a randomized trial. Ann Intern Med. 2010;153:769. doi:10.7326/0003-4819-153-12-201012210-00003
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