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Published on: Nov 13, 2020
2 minute read
By: Dr Rajan ( Medical Second Opinion Cell)

What Are Some Common Side Effects Of The COVID-19 Vaccine?

COVID Vaccine, the Pfizer update

On Monday Pfizer announced to the world the vaccine, once it has been developing with Germany's BioNTech, was found to be more than 90?fective. If this is substantiated, it may be possible for countries to receive the vaccine before the end of the year.

The Vaccine is an mRNA Vaccine, a novel method that introduces viral RNA into the body via a viral coat. The vaccine is incorporated into the person's cell, where the viral RNA is read and viral proteins are produced, including the coronavirus coat proteins. As the body reads and recognizes these proteins, it produces antibodies against these viral proteins and activates immune T cells against the virus.

The Pfizer results are based of a phase 3 clinical trial with 43, 538 participants with a diverse background. In this trial, the participants were split between those receiving a vaccine, and those who received a placebo with no effect. The vaccine is administered in two parts, with a 90?ficacy obtained 7 days after the second dose. This would mean a person is vaccinated just 28 days after the initial vaccination.

The FDA usually looks for a minimum 50?ficacy in vaccination when approving new vaccines. It may surprise you that the annual flu jab is also estimated to be 50?fective. The data from Pfizer was verified by an external, independent Data Monitoring Committee. It used data from 94 patients enrolled in the trial and subsequently developed COVID. It is from this groupset that 90% of efficacy is obtained. This is not the final data analysis, and further publications are expected in late November, with a potential FDA Emergency Use Authorisation approval if the data continues to show promise.

If approved, Pfizer has the ability to make 50 million shots before the end of the year, and 1.3 billion by the end of 2021. Many countries are clamoring for their fair share of these limited resources; the US has already negotiated 200m shots, UK 50m, and Germany (one of the major financers for the Pfizer vaccine) over 300m for European Countries.

We should emphasize that rapid vaccine development on this scale at this speed was unheard of prior to COVID. Usually, the animal studies for vaccines can take 1-2 years. In that time Pfizer and others have managed phase 1-3 clinical trials in humans, something that usually takes upwards of 10 years.

There are many unanswered questions that remain from this information.

How safe is the vaccine? Whilst safety information was not published, overall the vaccine appears to have minimal side effects. This is particularly difficult to state however since mRNA vaccines have never been used in people before.
Does the vaccine prevent transmission? In theory, yes. If you are immunized the replication of the virus should be limited significantly, so the number of viruses in each cough will be much lower. However, we do not have data to prove that there is no transmission, but that is also because we have very little data overall.
How long does the protection last? This is a very critical question. The 90?fectiveness rate was calculated just 7 days after the second shot, but it is likely this will change as data is collected over the long term. Some studies have suggested the antibody response fades within months following COVID infection. T Cell immunity on the other hand can stay for years, and it may be the effectiveness of creating a T cell immunity that dictates just how good this vaccine will be .

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Zincovit Tablets: Uses, Benefits, Dosage, and Side Effects Explained

Nutritional deficiencies are common in India due to irregular diets, stress, fast-paced lifestyles and increased health demands. Multivitamin supplements are often recommended to support overall health, immunity and energy levels. One commonly prescribed supplement is Zincovit tablets.

This comprehensive guide explains what Zincovit is, its uses, benefits, dosage recommendations and potential side effects.

What Are Zincovit Tablets?

Zincovit is a multivitamin and multimineral supplement that contains:

Zinc
Vitamin C
B-complex vitamins
Vitamin A
Vitamin D
Vitamin E
Selenium and other antioxidants

It is commonly prescribed to address nutritional deficiencies and support immune function.

Uses of Zincovit Tablets

Zincovit may be recommended for:

1. Nutritional Deficiencies

Helps replenish low vitamin and mineral levels due to poor diet or illness.

2. Weak Immunity

Zinc and vitamin C support immune system function.

3. Recovery After Illness

Often prescribed during recovery from infections, surgery or prolonged weakness.

4. Fatigue and Low Energy

B vitamins help improve energy metabolism.

5. Hair and Skin Health

Zinc and antioxidants may support healthy skin and hair.

Benefits of Zincovit Tablets

Immune Support

Zinc plays a vital role in immune cell function.

Antioxidant Protection

Vitamins C and E help reduce oxidative stress.

Improved Energy Levels

B-complex vitamins aid in converting food into energy.

Better Nutritional Balance

Supports individuals with dietary gaps.

Support During Stress

Stress can deplete nutrients; supplementation may help maintain balance.

Recommended Dosage

Adults: Usually one tablet daily after meals
Children: Only if prescribed by a pediatrician
Duration: As advised by healthcare professional

Do not exceed recommended dosage without medical guidance.

How to Take Zincovit

Take after food to prevent stomach irritation
Swallow whole with water
Avoid taking with high-calcium foods unless advised

Consistency improves effectiveness.

Possible Side Effects

Zincovit is generally well tolerated. However, some individuals may experience:

Nausea
Mild stomach discomfort
Metallic taste
Constipation or diarrhea (rare)

Severe allergic reactions are uncommon but require immediate medical attention.

Who Should Use Caution?

Consult a doctor before taking Zincovit if you have:

Kidney disorders
Liver disease
Thyroid problems
Known allergies to supplement components

Pregnant and breastfeeding women should seek medical advice before use.

Can Zincovit Be Taken Long-Term?

Short-term use for deficiency correction is common. Long-term use should be monitored by a healthcare provider to avoid excessive intake of certain vitamins or minerals.

Excess zinc intake may interfere with copper absorption if taken excessively over time.

Zincovit and Immunity in India

With increasing concern about immunity and viral infections, supplements containing zinc and antioxidants have gained popularity. However, supplements should complement — not replace — a balanced diet rich in:

Fruits
Vegetables
Whole grains
Protein sources

Healthy lifestyle habits remain essential.

When to Consult a Doctor

Seek medical advice if you experience:

Persistent fatigue
Recurrent infections
Unexplained weight loss
Severe weakness

These may indicate underlying medical conditions beyond nutritional deficiency.

Balanced Nutrition Still Matters

Supplements cannot substitute a healthy diet. Combine Zincovit with:

Proper hydration
Regular exercise
Adequate sleep
Stress management

This ensures overall wellness.

Conclusion

Zincovit tablets are widely used multivitamin supplements that support immunity, energy levels and overall nutritional balance. When taken in recommended doses, they are generally safe and beneficial for individuals with dietary deficiencies or increased nutritional needs.

However, supplements should be used responsibly and under medical guidance, especially for long-term use. Maintaining a healthy diet and lifestyle remains the foundation of good health.

If you are unsure whether Zincovit is right for you, consult a healthcare professional for personalized advice.

References

Indian Council of Medical Research – Nutrient Guidelines
World Health Organization – Micronutrient Recommendations
National Health Portal India – Supplement Safety
Journal of Clinical Nutrition – Zinc and Immunity Studies
National Institute of Nutrition India – Dietary Guidelines

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