Randomized, multicenter, active-controlled open-label study of NPC-25, zinc histidine hydrate, (non-inferiority to NOBELZIN™, zinc acetate dihydrate) for patients with hypozincemia.
We conducted a study to evaluate how effective NPC-25, a new form of zinc, is compared to a well-known treatment, NOBELZIN™, for patients with low zinc levels. Participants in this trial had their zinc levels checked and were grouped to receive either NPC-25 or NOBELZIN™.
For a period of up to 24 weeks, we aimed to maintain their zinc levels within a specific target range while closely monitoring for side effects. One of our main goals was to see if NPC-25 could maintain these target zinc levels similarly to NOBELZIN™.
Our findings revealed that NPC-25 was indeed non-inferior to NOBELZIN™, meaning it worked just as well. Importantly, we also observed that those taking NPC-25 reported fewer digestive issues, like nausea and vomiting. This suggests that while both treatments were effective, NPC-25 might be the gentler option.
Read More
7
Zinc treatment in hypozincemia study
Post-marketing surveillance of zinc acetate dihydrate for hypozincemia in Japan.
We explored the impact of zinc acetate dihydrate on several symptoms, including nausea, through a comprehensive study that assessed its safety and effectiveness for treating hypozincemia over a 52-week period. From the data collected, we observed an overall adverse reaction rate of 9.4%, with nausea reported in 1.4% of patients.
Despite nausea being a concern, the benefit of zinc acetate dihydrate for other indications was notable, with an efficacy rate of 83%. For patients experiencing symptoms such as pressure ulcers or stomatitis, the effectiveness was strikingly high. However, the specific effect of zinc on nausea is not definitively isolated within the study results, making it hard to gauge its direct and unique benefits.
In essence, while zinc acetate dihydrate shows promise for a variety of symptoms, including nausea, the evidence does not conclusively highlight its effectiveness for this particular issue on its own. Overall, it appears that zinc treatment can contribute positively to addressing several related health problems.
Read More
4
Zinc affects post-op nausea minimally
Comparing the Effect of Zinc-impregnated Pharyngeal Packs with Conventional Methods on the Level of Sore Throat Among Patients Undergoing Septorhinoplasty.
We explored the effectiveness of zinc-impregnated pharyngeal packs in reducing post-operative nausea and sore throat among patients undergoing septorhinoplasty. In this study, we divided 220 patients into four groups, each receiving different types of pharyngeal packs: normal saline-impregnated vibril, normal saline-impregnated gauze, zinc solution-impregnated vibril, and zinc solution-impregnated gauze.
Our findings revealed that there was no significant difference between the groups regarding the occurrence of sore throat shortly after surgery and at various intervals thereafter. However, we did observe that those using zinc solution-impregnated gauze experienced significantly less severity of nausea two hours post-surgery compared to those using normal saline-impregnated gauze. Ultimately, while zinc did not help with sore throat, it showed promise in alleviating nausea.
Read More
Most Useful Reviews
10
No nausea
I'm satisfied with it; it absorbs easily and produces no nausea.
Read More
9
No nausea post-meal
I experienced no nausea after eating. I’ve heard that zinc is greatly absorbed after special chelation. I currently take it daily without any discomfort.
Read More
9
No nausea noted
Think ZINC! I've always had zinc in my supplement stack for skin and general health. I don’t get sick often, and given my job, I am exposed to clients all day—no nausea or stomach irritations, and it's easy to digest.
Randomized, multicenter, active-controlled open-label study of NPC-25, zinc histidine hydrate, (non-inferiority to NOBELZIN™, zinc acetate dihydrate) for patients with hypozincemia.
We conducted a study to evaluate how effective NPC-25, a new form of zinc, is compared to a well-known treatment, NOBELZIN™, for patients with low zinc levels. Participants in this trial had their zinc levels checked and were grouped to receive either NPC-25 or NOBELZIN™.
For a period of up to 24 weeks, we aimed to maintain their zinc levels within a specific target range while closely monitoring for side effects. One of our main goals was to see if NPC-25 could maintain these target zinc levels similarly to NOBELZIN™.
Our findings revealed that NPC-25 was indeed non-inferior to NOBELZIN™, meaning it worked just as well. Importantly, we also observed that those taking NPC-25 reported fewer digestive issues, like nausea and vomiting. This suggests that while both treatments were effective, NPC-25 might be the gentler option.
Read More
7
Zinc treatment in hypozincemia study
Post-marketing surveillance of zinc acetate dihydrate for hypozincemia in Japan.
We explored the impact of zinc acetate dihydrate on several symptoms, including nausea, through a comprehensive study that assessed its safety and effectiveness for treating hypozincemia over a 52-week period. From the data collected, we observed an overall adverse reaction rate of 9.4%, with nausea reported in 1.4% of patients.
Despite nausea being a concern, the benefit of zinc acetate dihydrate for other indications was notable, with an efficacy rate of 83%. For patients experiencing symptoms such as pressure ulcers or stomatitis, the effectiveness was strikingly high. However, the specific effect of zinc on nausea is not definitively isolated within the study results, making it hard to gauge its direct and unique benefits.
In essence, while zinc acetate dihydrate shows promise for a variety of symptoms, including nausea, the evidence does not conclusively highlight its effectiveness for this particular issue on its own. Overall, it appears that zinc treatment can contribute positively to addressing several related health problems.
Read More
4
Zinc affects post-op nausea minimally
Comparing the Effect of Zinc-impregnated Pharyngeal Packs with Conventional Methods on the Level of Sore Throat Among Patients Undergoing Septorhinoplasty.
We explored the effectiveness of zinc-impregnated pharyngeal packs in reducing post-operative nausea and sore throat among patients undergoing septorhinoplasty. In this study, we divided 220 patients into four groups, each receiving different types of pharyngeal packs: normal saline-impregnated vibril, normal saline-impregnated gauze, zinc solution-impregnated vibril, and zinc solution-impregnated gauze.
Our findings revealed that there was no significant difference between the groups regarding the occurrence of sore throat shortly after surgery and at various intervals thereafter. However, we did observe that those using zinc solution-impregnated gauze experienced significantly less severity of nausea two hours post-surgery compared to those using normal saline-impregnated gauze. Ultimately, while zinc did not help with sore throat, it showed promise in alleviating nausea.
Read More
4
Zinc's tolerability in diarrhoea treatment
New formulation zinc sulphate acceptability and adherence in children with acute diarrhoea: A prospective, open-label, interventional study in Bangladesh.
We aimed to understand how zinc tablets, often recommended for treating diarrhoea in young children, affect nausea and overall treatment adherence. In this open-label study, we involved children aged 3 to 59 months who visited the outpatient department at Dhaka Hospital.
Our findings revealed that a significant number of children, about 92.7%, tolerated the modified zinc tablets well. However, we also noted that 32.8% of the children experienced vomiting, and 19.5% had regurgitation, while a smaller number, 7.4%, reported nausea. Interestingly, despite these side effects, a remarkable 99.3% of caregivers expressed their willingness to continue using this zinc formulation in the future.
Overall, while our study demonstrated that the modified zinc formulation was generally well-tolerated, we cannot overlook the considerable instances of nausea and vomiting experienced by the children. Balancing these side effects with the willingness of caregivers offers a complex view of zinc's role in diarrhoea management.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 11 Reviews
7.2
All Reviews
Positive Reviews
Negative Reviews
10
No nausea
I'm satisfied with it; it absorbs easily and produces no nausea.
Read More
9
No nausea post-meal
I experienced no nausea after eating. I’ve heard that zinc is greatly absorbed after special chelation. I currently take it daily without any discomfort.
Read More
9
No nausea noted
Think ZINC! I've always had zinc in my supplement stack for skin and general health. I don’t get sick often, and given my job, I am exposed to clients all day—no nausea or stomach irritations, and it's easy to digest.
Read More
9
No nausea
This zinc formulation causes me no nausea unlike other forms. It appears to be effective, and one a day suffices.
Read More
0
Side effects
I could only take this zinc for a week as it caused side effects including metallic taste, indigestion, and nausea.
Nausea is a sensation that often precedes vomiting and is characterized by an uneasy feeling in the stomach. It can be caused by a variety of factors, including motion sickness, certain medications, food poisoning, or underlying health conditions. The experience of nausea can range from mildly uncomfortable to intensely distressing and is often accompanied by other symptoms such as sweating, increased salivation, or a feeling of lightheadedness.
Many people experience nausea at some point in their lives, making it a common issue. Fortunately, there are several remedies and treatments available that can help alleviate this unpleasant sensation. Over-the-counter medications, home remedies like ginger tea, and lifestyle changes, such as eating smaller meals or avoiding certain triggers, can be effective in reducing nausea. However, if nausea is persistent or accompanied by severe symptoms like severe abdominal pain or fever, it’s essential to consult with a healthcare professional for an accurate diagnosis and appropriate treatment.
Zinc is a versatile metal known for its various applications in industry and health. It is a bluish-white metallic element represented by the symbol Zn and atomic number 30 on the periodic table. Zinc is primarily used for galvanizing steel to prevent rusting, in the manufacturing of alloys, and as a component in batteries. Additionally, zinc plays a crucial role in biological processes, making it an essential trace element in the human diet. It is involved in immune function, protein synthesis, wound healing, and DNA synthesis, highlighting its importance in maintaining overall health and well-being.
Zinc may play a role in alleviating certain types of nausea, especially when it is associated with specific conditions, such as pregnancy or certain gastrointestinal issues. Some studies have indicated that zinc supplements might help in reducing nausea symptoms due to their potential to support overall gut health and maintain immune function. However, the evidence is not conclusive, and results can vary from person to person.
It's important to note that while zinc supplementation might benefit some individuals, it is not universally effective for all types of nausea. If you're considering using zinc to address nausea, consult with a healthcare professional to ensure it's appropriate for your situation and to discuss the ideal dosage. Additionally, it's crucial to address the underlying cause of nausea rather than just treating the symptom itself.
Based on user reviews, the time it takes to see results from zinc supplementation for nausea varies among individuals. Many users who have successfully integrated zinc into their daily regimen report an immediate reduction in nausea when taken correctly, particularly with food. For instance, one user mentions that while they experienced nausea when taking it on an empty stomach, they found that taking it during or immediately after meals greatly alleviated this side effect (Read Review). Other users have emphasized that they experienced no nausea at all after switching to a better-absorbing formulation (Read Review, Read Review).
However, there are reports of side effects that include nausea and indigestion, especially when not taken with food, highlighting the importance of individual tolerance and proper timing of the supplement (Read Review). Overall, it's clear that many users find relief from nausea when they follow the suggested guidelines for intake, but results can be immediate or vary based on dietary habits and individual sensitivity.
The scientific research surrounding zinc as a supplement for nausea presents mixed outcomes. One study focusing on zinc-infused packs for post-operative patients indicated that those using zinc solution-impregnated gauze experienced significantly less severity of nausea two hours after surgery when compared to control groups using saline-impregnated gauze [3]. This implies a potential role for zinc in alleviating nausea in specific contexts, particularly in a post-surgical setting.
However, while zinc acetate dihydrate shows some benefit for various symptoms including nausea, the evidence does not definitively highlight its effectiveness for nausea alone [2]. Additionally, while high tolerability of zinc tablets was observed in children, there were notable reports of nausea and vomiting, indicating a complex relationship between zinc intake and gastrointestinal side effects [4]. Therefore, while there is evidence suggesting zinc may assist in reducing nausea in certain circumstances, the research remains inconclusive when evaluating its effectiveness as a standalone treatment for nausea.
Based on user reviews, many individuals have reported positive improvements in their symptoms when using zinc supplements. A significant number of users noted that they experienced no nausea or stomach discomfort, specifically highlighting the easy digestion of certain formulations. For instance, one user expressed satisfaction with their zinc supplement, noting that it absorbs easily and produces no nausea (Read Review). Another user confirmed a similar experience, stating they faced no nausea after incorporating zinc into their routine, particularly applauding a special chelation process that aids absorption (Read Review).
While the feedback is largely positive, it's important to recognize that individual results can vary. Some users did report side effects such as nausea, especially when the supplement was taken on an empty stomach (Read Review; Read Review). However, for those who followed guidelines—such as taking zinc during or shortly after meals—many found their symptoms alleviated and even noted benefits like stronger hair and nails over time (Read Review). Overall, personalized experiences highlight the importance of understanding one's tolerance and adjusting intake accordingly.
Based on user reviews, many individuals have reported varying experiences when combining zinc supplements with other products to manage nausea. Some users expressed satisfaction with their experiences, noting that they have taken zinc alongside other supplements without any adverse effects. For example, one user stated, "I drink zinc during a pandemic. I tried this manufacturer and take it separately from other vitamins to avoid causing nausea" (Read Review). This suggests that certain users may prioritize separating zinc from other supplements as a precaution to prevent nausea.
However, there are notable instances where users have experienced nausea even when following guidelines. Several users reported gastrointestinal discomfort, indicating that individual tolerance can significantly affect outcomes. For instance, one user shared their negative experience: "This product does not suit me very well; even when taken with food, it caused strong nausea" (Read Review). This highlights that while some users manage to co-administer zinc with other supplements effectively, others may face challenges, suggesting the importance of understanding personal tolerance and timing when integrating supplements into one's diet.
Based on user reviews, zinc appears to be generally well-tolerated by many individuals when consumed at the right dosage and timing. Users frequently report that taking zinc after meals significantly reduces the likelihood of experiencing nausea. For instance, one user mentioned that they have been taking zinc for hair growth and found that nausea occurred only when it was taken on an empty stomach, suggesting that consuming it with food is a best practice for avoiding discomfort Read Review. Similarly, another user experienced nausea when trying zinc on an empty stomach and highlighted the importance of taking it with meals for better tolerance Read Review.
However, experiences do vary, with some users mentioning that specific formulations are better tolerated than others, leading to little to no nausea when the right product is chosen. For instance, a user stated that a particular zinc formulation caused them no nausea and was effective, indicating that the formulation might play a critical role in user experience Read Review. Overall, it seems that finding the right dose and timing, along with choosing the appropriate formulation, is key to minimizing nausea for users taking zinc supplements.
4
Best after meals
I have been taking it for a month for hair growth and nail strengthening. The results are good; my hair has stopped streaking. Zinc strengthens the immune system, but if taken on an empty stomach, nausea occurs. It's best to take it during or immediately after meals.
9
No nausea
This zinc formulation causes me no nausea unlike other forms. It appears to be effective, and one a day suffices.
9
No nausea experienced
I liked it very much; it is easily tolerated and does not cause nausea. The dosage is also good.
0
Side effects
I could only take this zinc for a week as it caused side effects including metallic taste, indigestion, and nausea.
10
No nausea
I'm satisfied with it; it absorbs easily and produces no nausea.
9
No nausea post-meal
I experienced no nausea after eating. I’ve heard that zinc is greatly absorbed after special chelation. I currently take it daily without any discomfort.
0
Caused nausea
I tried it for the first time on an empty stomach, which resulted in nausea and vomiting. Unfortunately, given the size and price, it is excellent.
9
Avoids nausea
I drink zinc during a pandemic. I tried this manufacturer and take it separately from other vitamins to avoid causing nausea.
0
Strong nausea experienced
This product does not suit me very well; even when taken with food, it caused strong nausea.
4
Zinc affects post-op nausea minimally
Comparing the Effect of Zinc-impregnated Pharyngeal Packs with Conventional Methods on the Level of Sore Throat Among Patients Undergoing Septorhinoplasty.
We explored the effectiveness of zinc-impregnated pharyngeal packs in reducing post-operative nausea and sore throat among patients undergoing septorhinoplasty. In this study, we divided 220 patients into four groups, each receiving different types of pharyngeal packs: normal saline-impregnated vibril, normal saline-impregnated gauze, zinc solution-impregnated vibril, and zinc solution-impregnated gauze.
Our findings revealed that there was no significant difference between the groups regarding the occurrence of sore throat shortly after surgery and at various intervals thereafter. However, we did observe that those using zinc solution-impregnated gauze experienced significantly less severity of nausea two hours post-surgery compared to those using normal saline-impregnated gauze. Ultimately, while zinc did not help with sore throat, it showed promise in alleviating nausea.
7
Zinc treatment in hypozincemia study
Post-marketing surveillance of zinc acetate dihydrate for hypozincemia in Japan.
We explored the impact of zinc acetate dihydrate on several symptoms, including nausea, through a comprehensive study that assessed its safety and effectiveness for treating hypozincemia over a 52-week period. From the data collected, we observed an overall adverse reaction rate of 9.4%, with nausea reported in 1.4% of patients.
Despite nausea being a concern, the benefit of zinc acetate dihydrate for other indications was notable, with an efficacy rate of 83%. For patients experiencing symptoms such as pressure ulcers or stomatitis, the effectiveness was strikingly high. However, the specific effect of zinc on nausea is not definitively isolated within the study results, making it hard to gauge its direct and unique benefits.
In essence, while zinc acetate dihydrate shows promise for a variety of symptoms, including nausea, the evidence does not conclusively highlight its effectiveness for this particular issue on its own. Overall, it appears that zinc treatment can contribute positively to addressing several related health problems.
4
Zinc's tolerability in diarrhoea treatment
New formulation zinc sulphate acceptability and adherence in children with acute diarrhoea: A prospective, open-label, interventional study in Bangladesh.
We aimed to understand how zinc tablets, often recommended for treating diarrhoea in young children, affect nausea and overall treatment adherence. In this open-label study, we involved children aged 3 to 59 months who visited the outpatient department at Dhaka Hospital.
Our findings revealed that a significant number of children, about 92.7%, tolerated the modified zinc tablets well. However, we also noted that 32.8% of the children experienced vomiting, and 19.5% had regurgitation, while a smaller number, 7.4%, reported nausea. Interestingly, despite these side effects, a remarkable 99.3% of caregivers expressed their willingness to continue using this zinc formulation in the future.
Overall, while our study demonstrated that the modified zinc formulation was generally well-tolerated, we cannot overlook the considerable instances of nausea and vomiting experienced by the children. Balancing these side effects with the willingness of caregivers offers a complex view of zinc's role in diarrhoea management.
References
Asaoka D, Ishihara T, Ezoe S, Hamada I, Kitamura M, et al. Randomized, multicenter, active-controlled open-label study of NPC-25, zinc histidine hydrate, (non-inferiority to NOBELZIN™, zinc acetate dihydrate) for patients with hypozincemia. J Trace Elem Med Biol. 2025;87:127558. 10.1016/j.jtemb.2024.127558
Ezoe S, Ishihara T, Hosogai T, Kokubo T. Post-marketing surveillance of zinc acetate dihydrate for hypozincemia in Japan. Pharmazie. 2024;79:29. 10.1691/ph.2024.3630
Parvizi A, Haddadi S, Akbari M, Akbarpour M, Taghipour Rudsari F, et al. Comparing the Effect of Zinc-impregnated Pharyngeal Packs with Conventional Methods on the Level of Sore Throat Among Patients Undergoing Septorhinoplasty. Anesth Pain Med. 2022;12:e127262. 10.5812/aapm-127262
Nuzhat S, Ahmed T, Alam J, Billal SM, Khan AI, et al. New formulation zinc sulphate acceptability and adherence in children with acute diarrhoea: A prospective, open-label, interventional study in Bangladesh. J Paediatr Child Health. 2022;58:1215. 10.1111/jpc.15953