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Naltrexone
What is it? Overview Usage Side Effects and Warnings
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Naltrexone Side Effects and Warnings

Written by FoundHealth.

What are the precautions when taking this medicine?

• Check medicines with healthcare provider. This medicine may not mix well with other medicines.

• You may not be alert. Avoid driving, doing other tasks or activities until you see how this medicine affects you.

• Avoid alcohol (includes wine, beer, and liquor) or other medicines and natural products that slow your actions and reactions.

• Tell healthcare provider if you are pregnant or plan on getting pregnant.

• Tell healthcare provider if you are breast-feeding.

What are some possible side effects of this medicine?

Oral and injection:

• Feeling lightheaded, sleepy, having blurred vision, or a change in thinking clearly. Avoid driving, doing other tasks or activities that require you to be alert or have clear vision until you see how this medicine affects you.

• Nervous and excitable.

• Headache.

• Belly pain.

• Nausea or vomiting. Small frequent meals, frequent mouth care, sucking hard, sugar-free candy, or chewing sugar-free gum may help.

• Inability to sleep.

• Liver damage can rarely occur.

Injection:

• Irritation where the shot is given.

Reasons to call healthcare provider immediately

• If you suspect an overdose, call your local poison control center or emergency department immediately.

• Signs of a life-threatening reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; fits; or swelling of face, lips, tongue, or throat.

• Signs or symptoms of depression, suicidal thoughts, nervousness, emotional ups and downs, abnormal thinking, anxiety, or lack of interest in life.

• Significant change in thinking clearly and logically.

• Severe belly pain.

• Not able to eat.

• Dark urine or yellow skin or eyes.

• Feeling extremely tired or weak.

• Severe skin irritation.

• Any rash.

• No improvement in condition or feeling worse.

 
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