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Oral Rehydration Salts: A Safe and Effective Way to Treat Dehydration

By Apollo Pharmacy, Published on- 27 October 2023

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Ensuring adequate hydration is crucial for maintaining good health. Water is essential for various bodily functions, including regulating body temperature, aiding digestion, and transporting nutrients. When the body loses more fluids than it takes in, dehydration can occur, leading to a range of health issues. To combat dehydration effectively, oral rehydration salts (ORS) have proven to be a safe and effective solution. In this blog post, we will explore the benefits and oral rehydration solution uses in different scenarios where dehydration occurs.

What is Dehydration?

Dehydration occurs when your body loses more fluids than it takes in, leading to an imbalance in your body's fluid levels. The human body is made up of about 60% water, which is essential for various bodily functions such as regulating temperature, lubricating joints, and aiding digestion. To maintain this balance, it's important to consume enough fluids and electrolytes. Several factors can contribute to dehydration. These include:

  • Excessive sweating during physical activity or hot weather
  • Vomiting or diarrhoea caused by illness or infection
  • Not drinking enough water throughout the day
  • Certain medical conditions such as diabetes or chronic kidney disease that increase fluid loss

Recognising the Symptoms of Dehydration

It is important to recognise the symptoms of dehydration to seek timely treatment and prevent any complications.

1. Mild to Moderate Dehydration Symptoms

When you are experiencing mild to moderate dehydration, you may notice the following symptoms:

  • Thirst: Feeling thirsty is one of the initial signs that your body needs fluids. It is your body's way of signalling that it needs hydration.
  • Dry Mouth and Skin: Dehydration can lead to a dry mouth and parched skin. Your mouth may feel sticky, and your skin may appear less elastic and feel rough to touch.
  • Dark Urine: When you are dehydrated, your urine becomes concentrated, resulting in a darker colour. Monitoring the colour of your urine is an easy way to check for dehydration.
  • Fatigue and Dizziness: Dehydration can cause a drop in blood volume, leading to reduced oxygen supply to the brain. This can result in feelings of fatigue, weakness, and dizziness.

2. Severe Dehydration Symptoms

Some of the most common severe dehydration symptoms include:

  • Rapid Heart Rate: When your body lacks fluids, your heart has to work harder to pump blood, leading to an increased heart rate. If you notice that your heart is beating faster than usual, it could be a sign of severe dehydration.
  • Poor Skin Elasticity: Dehydration affects the elasticity of your skin. To test for dehydration, gently pinch the skin on the back of your hand or abdomen. If the skin does not bounce back quickly or remains "tented," it could indicate severe dehydration.
  • Confusion or Irritability: Dehydration can also impact your mental state. Severe dehydration may cause confusion, irritability, or difficulty concentrating.

What are Oral Rehydration Salts?

Oral Rehydration Salts (ORS) is a simple and effective way to treat dehydration. It is a specially formulated solution that contains a precise balance of essential electrolytes and glucose. The purpose of ORS is to replace the fluids and electrolytes lost from the body due to dehydration.

1. Composition ORS

The composition of ORS typically includes:

  • Sodium chloride
  • Potassium chloride
  • Sodium citrate
  • Glucose

2. How does ORS Work in the Body?

When you consume ORS, the glucose aids in the absorption of water and electrolytes in your intestine. The sodium and potassium ions help replenish the electrolyte levels in your body, which are necessary for the proper functioning of various bodily processes.

Benefits of ORS over Plain Water or Sports Drinks

ORS has several advantages over plain water or sports drinks when it comes to rehydration.

1. Electrolyte Balance Restoration

When we lose fluids, our electrolyte levels can become imbalanced, leading to symptoms like muscle cramps and fatigue. ORS contains a precise balance of electrolytes which helps replenish these essential minerals and restore the electrolyte balance.

2. Fluid Absorption and Retention

The specific composition of ORS allows for optimal absorption of fluids by the body. The presence of glucose facilitates the absorption of water through the intestines, ensuring that the body retains as much fluid as possible.

When to Use Oral Rehydration Salts (ORS)?

Here are some key instances when ORS can be used:

1. Diarrhoea

Diarrhoea, whether caused by bacterial or viral infections, can lead to fluid loss and dehydration. ORS helps replenish the lost fluids and electrolytes, preventing further complications.

2. Excessive Vomiting

Frequent vomiting can quickly deplete the body's water and electrolyte stores. ORS provides a balanced solution to restore hydration and prevent electrolyte imbalances.

3. Dehydration

Dehydration can occur due to various reasons such as: 

  • Fever
  • Excessive sweating
  • Not drinking enough fluids

4. Strenuous Exercise

Intense physical activity, especially in hot weather, can cause significant fluid and electrolyte loss through sweat..

Preparing and Using Oral Rehydration Salts (ORS)

Now that you understand the importance of Oral Rehydration Salts (ORS) in treating dehydration, let's explore how you can prepare and use ORS at home.

1. DIY ORS Recipe for Homemade Solution

In case you don't have access to commercial ORS packets, you can easily make a homemade rehydration solution using ingredients commonly found in your kitchen. The ingredients consist of sugar, salt and clean drinking water. The instructions are:

  • Boil the water and allow it to cool to room temperature.
  • Add 6 teaspoons of sugar and 1/2 teaspoon of salt to the water.
  • Stir well until the sugar and salt are completely dissolved.
  • Your homemade ORS solution is now ready to use.

2. Commercially Available ORS Options in India

When it comes to ORS, there are several recommended brands and product varieties available in the market. These brands have been tested and proven to meet the required standards for treating dehydration effectively. Some include:

  • Halewood: One of the most popular brands is Halewood, known for its high-quality products and reliable performance. Their ORS sachets are conveniently packaged, making them easy to carry and use.
  • Electral: Another well-known brand is Electral, which offers a range of flavours to suit different preferences.

Additional Tips for Preventing Dehydration

Dehydration can affect individuals of all age groups, but specific hydration strategies are essential for different age groups. Preventing dehydration would include:

1. Hydration Strategies for Infants and Children

When it comes to infants and children, oral rehydration solution uses play a crucial role in preventing and managing dehydration. It is important to follow the recommended dosage instructions while preparing ORS for infants and children.

For infants younger than six months, it is crucial to consult a healthcare professional for specific dosing instructions. For children older than six months, the guideline is to offer ORS in small, frequent sips of about 5-10 ml every few minutes until rehydration is achieved.

2. Hydration Strategy for Adults and Elderly

For adults and the elderly, maintaining regular fluid intake is crucial to prevent dehydration. Drinking an adequate amount of water throughout the day is essential, especially during hot weather or physical activity.

For adults, the general recommendation is to consume one litre of ORS for every loose stool passed. It is also beneficial to include hydrating foods such as fruits and vegetables in the diet.

3. Dietary Recommendations

In addition to using oral rehydration salts (ORS), there are dietary recommendations that can help promote hydration.

  • Water-rich Foods: Consuming fruits like watermelon, oranges, and grapes, which have high water content, can help replenish fluids in the body. Including vegetables like cucumber, spinach, and tomatoes can also contribute to hydration. You may also drink coconut water.
  • Dehydrating Foods and Beverages: It is important to avoid dehydrating foods and beverages. These include alcohol, caffeinated drinks like tea and coffee, and sugary drinks like soda. These can increase urine production, leading to fluid loss.


In conclusion, it is crucial to prioritise timely rehydration when experiencing dehydration. Dehydration can lead to serious health complications if left untreated. Fortunately, oral rehydration salts (ORS) offer a safe and effective solution for replenishing lost fluids and electrolytes. Remember to stay hydrated by drinking an adequate amount of water throughout the day. If you or someone you know experiences symptoms of dehydration, consult a healthcare professional and consider using ORS as a safe and reliable solution to restore hydration levels promptly.

Explore Oral Rehydration Salts


Q. How does Oral Rehydration Solution (ORS) work?

When you consume an Oral Rehydration Solution, the electrolytes and glucose in the solution help to increase water absorption in the intestines. This helps replenish the body's fluid levels and maintain a proper electrolyte balance.

Q. Are there any age restrictions for using ORS?

No, ORS can be used by people of all ages, including infants, children, adults, and elderly individuals. However, it is important to follow the appropriate dosage instructions based on age and weight.

Q. What are the uses of Oral Rehydration Solution?

Oral Rehydration Solution is primarily used to treat dehydration caused by various conditions such as diarrhoea, vomiting, excessive sweating, and fever. It is commonly recommended for both children and adults to prevent complications associated with dehydration.

Q. Are there any side effects of using ORS?

Generally, ORS is considered safe with minimal side effects. However, some individuals may experience mild bloating or nausea after consuming ORS. If these symptoms persist or worsen, it is advisable to consult a healthcare professional.

Q. Can ORS be used for sports hydration?

Yes, ORS can be used for sports hydration as it helps replace electrolytes lost during intense physical activity. However, it is important to note that sport-specific drinks formulated for athletes may be more suitable for prolonged or intense exercise sessions.


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