Cambia (diclofenac potassium) is a brand-name prescription medication. The Food and Drug Administration (FDA) has approved it to treat migraine episodes with or without aura in adults. This medication is approved to treat a migraine episode that’s already occurring.

Cambia does have some limitations of use. This medication should not be used to prevent migraine episodes. In addition, it’s not known if Cambia is safe or effective in treating cluster headaches.

Cambia comes as a powder in a packet that’s mixed with water to form an oral solution. It belongs to a class of drugs called nonsteroidal anti-inflammatory drugs. Cambia is not currently available in a generic version.

For information about the dosage of Cambia, including its strength and how to take the drug, keep reading. For a comprehensive look at Cambia, see this article.

This article describes typical dosages for Cambia provided by the drug’s manufacturer. When taking Cambia, always follow the dosage prescribed by your doctor.

Talk with your doctor about the best dosage of Cambia for you.

Cambia form

Cambia comes as a powder in a packet that you’ll mix with water to form an oral solution.

Cambia strength

Cambia comes in one strength: 50 milligrams (mg).

Typical dosages

The following information describes dosages that are commonly used or recommended. However, be sure to take the dosage your doctor prescribes for you. Your doctor will determine the best dosage to fit your needs.

Dosage for migraine episodes

The recommended adult dosage of Cambia is one packet of powder mixed with water when you have an active migraine episode. This is the maximum daily dose that’s recommended.

At this time, it’s unknown whether taking more than one dose of Cambia for a migraine episode is safe. So, your doctor likely won’t recommend that you take a repeat dose if Cambia isn’t working to treat your migraine episode. And because of the risk of side effects from taking Cambia, it’s recommended that you take the smallest dosage amount possible to prevent side effects from occurring.

If you find that you’re taking Cambia often to treat your migraine episodes, talk with your doctor about your dosage frequency. They may do a dosage analysis to see how much medication you’re taking during a certain time period.

In some cases, if you’re taking Cambia often for migraine episodes, your doctor may recommend taking another medication in combination with Cambia to prevent migraine episodes from occurring.

Talk with your doctor about the best treatment plan for you.

Long-term treatment

Cambia is meant to be taken as needed. So, you should only take Cambia for migraine episodes that are already occurring. You should not be taking a certain Cambia dosage per day since this medication is only recommended when you actively have a migraine episode.

However, if Cambia works to treat your migraine episodes, your doctor may recommend that you take it long term whenever you experience a migraine episode.

Cambia comes as a powder that you’ll mix with water to form an oral solution. When you have a migraine episode, your doctor may recommend taking a dose of Cambia.

To take your dose, pour the powder into a cup and add 1 to 2 ounces — or 2 to 4 tablespoons — of water to the cup. Then, stir the mixture into a solution and drink it right away.

Do not mix Cambia with any liquids besides water. It’s important to note that this medication may work better if you take it on an empty stomach instead of with food.


If you’re having trouble reading your prescription label, talk with your doctor or pharmacist. Some pharmacies offer labels with large print, braille, or a code you scan with a smartphone to convert text to speech. If your local pharmacy doesn’t have these options, your doctor or pharmacist might be able to recommend a pharmacy that does.

If you’re having trouble opening medication bottles, ask your pharmacist about putting Cambia in an easy-open container. They also may recommend tools that can make it easier to open bottles.

If you take more Cambia than your doctor prescribes, you may develop serious side effects.

It’s important that you do not take more Cambia than your doctor advises.

Symptoms of an overdose

Overdose symptoms of Cambia can include:

If you take more than the recommended amount of Cambia

Call your doctor right away if you believe you’ve taken too much Cambia. Another option is to call the American Association of Poison Control Centers at 800-222-1222 or use its online tool. If you have severe symptoms, immediately call 911 or your local emergency number, or go to the nearest emergency room.

The dosages in this article are typical dosages provided by the drug’s manufacturer. If your doctor recommends Cambia for you, they will prescribe the dosage that’s right for you. Always follow the dosage that your doctor prescribes for you.

As with any drug, never change your dosage of Cambia without your doctor’s recommendation. If you have questions about the dosage of Cambia that’s best for you, talk with your doctor.

Besides learning about dosage, you may want other information about Cambia. These additional articles might be helpful to you:

Disclaimer: Medical News Today has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.