Last update
5/16/2025

Overview

SCIENTIFIC SCORE
Questionable
Based on 4 Researches
5.5
USERS' SCORE
Questionable
Based on 35 Reviews
5.6
Supplement Facts
Serving Size: 1 Caplet
Amount Per Serving
%DV
Zinc (as Zinc Gluconate)
50 mg
455%

Top Medical Research Studies

7
Zinc treatment reduces nausea risk
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
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
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

9
No nausea experienced
8 people found this helpful
This is good zinc at a dosage of 50 mg. I take it as prescribed with selenium, vitamin D3, and vitamin C. It does not cause nausea, and the stomach doesn’t react negatively.
Read More
0
Not suitable
5 people found this helpful
This zinc did not suit my body at all. Despite trying different timings and methods, it caused stomach spasms, pain, and nausea which lasted about an hour. After several attempts, I decided to stop taking it.
Read More
9
Nausea treatment effective
4 people found this helpful
I found this product to be excellent! It improved my skin remarkably, reducing acne and dark spots significantly. I didn't experience any nausea, which is often mentioned with zinc supplements. It was easy to swallow, and I will definitely order more. Highly recommend!
Read More

Medical Researches

SCIENTIFIC SCORE
Questionable
Based on 4 Researches
5.5
  • All Researches
7
Zinc treatment reduces nausea risk
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
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
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
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
Questionable
Based on 35 Reviews
5.6
  • All Reviews
  • Positive Reviews
  • Negative Reviews
9
No nausea experienced
8 people found this helpful
This is good zinc at a dosage of 50 mg. I take it as prescribed with selenium, vitamin D3, and vitamin C. It does not cause nausea, and the stomach doesn’t react negatively.
Read More
0
Not suitable
5 people found this helpful
This zinc did not suit my body at all. Despite trying different timings and methods, it caused stomach spasms, pain, and nausea which lasted about an hour. After several attempts, I decided to stop taking it.
Read More
9
Nausea treatment effective
4 people found this helpful
I found this product to be excellent! It improved my skin remarkably, reducing acne and dark spots significantly. I didn't experience any nausea, which is often mentioned with zinc supplements. It was easy to swallow, and I will definitely order more. Highly recommend!
Read More
0
Effort wasted
2 people found this helpful
Swallowing this pill was difficult as it sticks in my throat. Following even one pill, I felt nauseous, so I discontinued use. It was a waste of money and didn't suit me.
Read More
2
Nausea from dosage
1 people found this helpful
Zinc is necessary, especially during colds, but I initially experienced severe nausea with one tablet. I found that taking half alleviated the nausea.
Read More

Frequently Asked Questions

0
Effort wasted
2 people found this helpful
Swallowing this pill was difficult as it sticks in my throat. Following even one pill, I felt nauseous, so I discontinued use. It was a waste of money and didn't suit me.
0
Nausea guidance
I ordered this zinc for thyroid support. I suggest taking it after meals to prevent nausea which can occur on an empty stomach.
9
Nausea treatment effective
4 people found this helpful
I found this product to be excellent! It improved my skin remarkably, reducing acne and dark spots significantly. I didn't experience any nausea, which is often mentioned with zinc supplements. It was easy to swallow, and I will definitely order more. Highly recommend!
0
Causes nausea
After taking this product, I experienced nausea.
9
No nausea noted
Good zinc that doesn’t cause any nausea. It helps at the first sign of a cold.
0
Not suitable
5 people found this helpful
This zinc did not suit my body at all. Despite trying different timings and methods, it caused stomach spasms, pain, and nausea which lasted about an hour. After several attempts, I decided to stop taking it.
9
No nausea experienced
8 people found this helpful
This is good zinc at a dosage of 50 mg. I take it as prescribed with selenium, vitamin D3, and vitamin C. It does not cause nausea, and the stomach doesn’t react negatively.
2
Nausea from dosage
1 people found this helpful
Zinc is necessary, especially during colds, but I initially experienced severe nausea with one tablet. I found that taking half alleviated the nausea.
7.5
Nausea with food
2 people found this helpful
The product is well packed with tamper-evident seals. I recommend taking it with breakfast to avoid nausea, which may occur on an empty stomach. A urologist advised me to take zinc for prostate health. I've been taking it for two months now.
9
No nausea
This is a fantastic zinc supplement that absorbs well without causing nausea, which is a relief as I've often felt sick from other zinc brands. I wholeheartedly recommend it!
7
Zinc treatment reduces nausea risk
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.
7
Zinc treatment in hypozincemia study
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 affects post-op nausea minimally
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.

References

  1. 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
  2. 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
  3. 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
  4. 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
image