Cod-liver oil

Category- Suppliments

Medicine Highlight 

Cod-liver oil Summary 

Cod liver oil 300 mg is a supplement rich in omega-3 fatty acids, vitamins A and D. It helps strengthen bones, supports heart and brain health, reduce joint and muscle inflammation, and boost immunity. It also improves skin, hair, and eye health and supports growth and development in children. Common side effects may include upset stomach, nausea, or fishy aftertaste, while taking too much can cause vitamin A or D toxicity. The correct dose should be followed, and a doctor should be consulted for children, pregnant women, or those with health conditions. 

Cod-liver oil Uses 

Cod Liver Oil 300 mg is an oral supplement rich in omega-3 fatty acids and vitamins A and D. It is used to treat or support the following: 

1. Support bone health and prevent weakness, brittle bones, or rickets 
2. Boost immunity and overall health 
3. Support heart and brain health 
4. Reduce inflammation in joints and muscles 
5. Promote healthy skin and vision 
6. Support growth and development in children 

Directions for Use 

1. Take this medicine exactly as prescribed by your doctor, regularly at the same time each day. 
2. Do not stop taking medication without your doctor’s approval, even if you feel better. 
3. If you forget to take the medicine, take it as soon as you remember, unless it’s almost time for the next one, then just skip it. 

How Cod-liver oil Works 

Cod liver oil provides omega-3 fatty acids and vitamins A and D. Omega-3 fatty acids reduce inflammation and support heart, brain, joint, and muscle health. Vitamin A promotes healthy skin, eyes, and immunity, while vitamin D helps absorb calcium and phosphorus, strengthening bones and preventing disorders like rickets and osteoporosis. Together, they support overall health and prevent nutrient deficiencies. 

Interactions with Other Medicines 

Avoid taking Cod-liver oil with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal: 

1. Digoxin 
2. Bumetanide 
3. Furosemide 
4. Torsemide 
5. Diltiazem 
6. Nifedipine 
7. Verapamil 
8. Warfarin 

Interactions with Food Products 

Cod liver oil can be taken with or without food but taking it with meals may reduce stomach upset and improve absorption. Avoid using it with other high-dose vitamin A or D supplements, and limit alcohol intake to reduce the risk of side effects. 

Storage 

1. The medicine should be stored in a cool and dry place 
2. Keep away from sunlight and moisture 
3. Store the medicine at a temperature below 25°C 

Intake Routine/Cycle 

Daily dose

Take Cod-liver oil exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor. 

Missed Dose

If you forget to take your medicine, take the medication soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage. 

Recommended Dietary Allowance (RDA)

Cod Liver Oil

The recommended dose of cod liver oil varies based on age, health condition, and nutritional needs. Adults typically take 1–2 teaspoons (5–10 mL) per day, while for children or pregnant women, the dose should be determined by a doctor. 

Natural Source of Cod Liver Oil 

The following are the natural sources of Cod Liver Oil listed in this medicine: 

Cod Liver Oil

1. Fatty fishlike salmon, mackerel, herring, and sardines 

2. Other fish liver oils from cold-water fish 

Side Effects

More common

1. Headache 
2. Upset stomach 
3. Dry mouth 
4. Muscle or bone pain 
5. Metallic taste in the mouth
6. Difficulty or pain while urinating  

FAQ’s

1. What are the benefits of cod liver oil? 

Cod liver oil provides omega-3 fatty acids and vitamins A and D, which help support heart and brain health, strengthen bones, boost immunity, improve skin and eye health, reduce inflammation, and support overall growth and development. 

2. What are the side effects of cod liver oil? 

Common side effects include fishy aftertaste, burping, nausea, upset stomach, diarrhea, and mild heartburn. Rare side effects may include vitamin A or D toxicity, headache, muscle or bone pain, dry mouth, metallic taste, or difficulty urinating if taken in excessive amounts. 

3. Can I use cod liver oil for hair? 

Yes, cod liver oil may promote healthier hair by nourishing hair follicles with vitamin A, vitamin D, and omega-3 fatty acids. It can help reduce hair thinning, dryness, and hair breakage. 

4. What are the benefits of cod liver oil for females? 

For women, cod liver oil may support bone strength, improve skin and hair health, regulate hormonal balance, boost immunity, and reduce inflammation. It is also beneficial during pregnancy for fetal development when taken under medical advice. 

References

1. PubChem. Cod Liver Oil [Internet]. pubchem.ncbi.nlm.nih.gov. Available from 
2. Cod liver oil [Internet]. go.drugbank.com. Available from 
3. Cod Liver Oil: Uses, Side Effects, Interactions, Dosage, and Warning [Internet]. Webmd.com. 2019. Available from 

Pranathi Chintaluri

Pranathi is a final year Pharm D student at Chalapathi Institute of Pharmaceutical Sciences. She loves learning and applying her knowledge in pharmacy and has a passion for writing, which allows her to express ideas clearly and creatively. She enjoys combining her technical skills with her love for writing and communication to make a meaningful impact. Currently she is working on a research paper about “Consanguineous marriages and its impact on children’s health” which will be published by the end of 2025.