Naltrexone is commonly prescribed to support recovery from alcohol and opioid use, and for many women, it can be an important part of treatment. Still, understanding naltrexone side effects in women is essential, because women may experience physical, emotional, and hormonal changes differently over time. While this medication can help reduce cravings and support sobriety, it’s not without risks—especially when starting, adjusting the dose, or managing other health conditions.
At Casa Capri Recovery in Orange County, CA, we support women who are taking naltrexone as part of a broader recovery plan and want to better understand how it affects their bodies, emotions, and overall well-being. We believe that education, compassionate care, and close medical guidance help women feel empowered and supported throughout treatment.
Next Steps
If you’re struggling with addiction, you don’t have to face it alone. At Casa Capri, we offer expert, women-centered care in a supportive and nurturing space—designed by women, for women. Our team is here to help you heal with purpose and connection.
Call our admissions team for a free, confidential chat—we’ll even check your insurance and estimate any costs upfront.
What Is Naltrexone and How Does It Work?
Naltrexone is a prescription medication used to treat alcohol use disorder and opioid use disorder. It works by targeting opioid receptors in the brain. By blocking these receptors, naltrexone blocks the pleasurable effects of opioid drugs and reduces the reward associated with drinking alcohol.
Naltrexone may be prescribed as a daily pill or as a monthly injection, depending on individual needs. Unlike medications such as methadone, naltrexone does not replace opioids and requires a person to be opioid free before starting naltrexone. Your healthcare provider will review your history, current medications, and overall health before prescribing it.
Common Naltrexone Side Effects in Women
Like many medications, naltrexone side effects can vary. Some women experience mild symptoms when first taking naltrexone, while others notice changes as treatment continues. Common side effects include:
- Nausea or stomach discomfort
- Headaches
- Fatigue or low energy
- Sleep disturbances
- Diarrhea
These symptoms often improve as the body adjusts, especially when lower doses are used at the start. Always follow the prescription label and communicate openly with your doctor about any side effects that feel concerning.
Liver Health and Medical Monitoring
One important consideration with naltrexone is liver function. Women with liver disease or a history of liver concerns may need additional monitoring. Rarely, naltrexone has been associated with liver damage, which is why blood tests are sometimes required before and during treatment.
Warning signs such as dark urine, persistent abdominal pain, or yellowing of the skin should be reported to a doctorright away. Women with kidney disease should also discuss risks carefully with their healthcare provider.
Naltrexone, Opioids, and Overdose Risk
Because naltrexone blocks opioid receptors, attempting to override its effects by taking higher doses of opioids can be extremely dangerous. After stop taking naltrexone, tolerance may be lower, increasing the risk of overdose if opioids are used again.
This is why naltrexone must be used as part of a comprehensive treatment plan with medical supervision, education, and ongoing support.
Naltrexone and Withdrawal Symptoms
Naltrexone itself does not cause traditional withdrawal symptoms, but starting it too soon after opioid use can trigger opioid withdrawal. Your care team will ensure you are fully opioid free before beginning treatment.
Missing doses or not following a regular dosing schedule can also affect how the medication works. If you have a missed dose, talk with your doctor about when to take your next dose safely.
Mental Health and Emotional Considerations
Some women report mood changes, including low mood or depression, while taking naltrexone—especially early in treatment. Women with a history of mental health conditions or self harm should be closely supported by a knowledgeable care team.
Naltrexone is most effective when paired with counseling, therapy, and emotional support rather than used alone.
Naltrexone as Part of a Whole-Person Treatment Plan
While naltrexone treatment can help reduce cravings and support abstinence, it works best alongside other treatmentssuch as therapy, support groups, and lifestyle support. Many women benefit from support group meetings, trauma-informed therapy, and ongoing connection with peers.
Recovery is not just about medication—it’s about healing the whole person.
Treatment for Substance Use at Casa Capri Recovery
At Casa Capri Recovery, we understand that medications like naltrexone are tools—not cures. Our all-women programs support women navigating use disorder, dependence, and recovery from alcohol and opioids with dignity and care.
Our integrated approach combines medical oversight, therapy, and community support to address the emotional roots of addiction, including trauma, stress, and co-occurring challenges.
Learn more about our women’s mental health and dual diagnosis treatment.
Begin Healing Today
If you’re concerned about naltrexone side effects in women, unsure about your dose, or seeking support for opioid use disorder or alcohol use disorder, help is available. You deserve care that feels safe, informed, and compassionate.
Casa Capri Recovery offers women a supportive environment to heal from substance use, rebuild trust with their bodies, and move forward with confidence.
Next Steps
If you’re struggling with addiction, you don’t have to face it alone. At Casa Capri, we offer expert, women-centered care in a supportive and nurturing space—designed by women, for women. Our team is here to help you heal with purpose and connection.
Call our admissions team for a free, confidential chat—we’ll even check your insurance and estimate any costs upfront.
FAQs About Naltrexone Side Effects in Women
How do doctors decide when to prescribe medications like naltrexone?
Doctors prescribe medications like naltrexone after carefully reviewing a woman’s substance use history, overall health, and treatment goals. A healthcare provider will consider factors such as prior opioid or alcohol use, current symptoms, and whether medication support fits into a broader recovery plan.
Can naltrexone interact with other medications?
Yes. Naltrexone can interact with other medications, including certain pain relievers and medications used during detox. It’s important to share a full list of prescriptions, over-the-counter drugs, and supplements with your doctor to ensure safe treatment.
Does naltrexone cause physical dependence?
Naltrexone does not cause physical dependence in the way opioids or alcohol do. It does not produce a high or lead to tolerance. However, stopping naltrexone may cause cravings to return, which is why ongoing support is important.
When do the effects occur after starting naltrexone?
For most women, effects occur within the first few days of starting naltrexone, especially in terms of reduced cravings. Some side effects may appear early and lessen over time as the body adjusts.
Are there other treatments besides naltrexone?
Yes. Other treatments may include counseling, therapy, peer support groups, and alternative medications depending on individual needs. Many women benefit most from a combination of medication and emotional support rather than medication alone.
Can naltrexone help people recovering from heroin use?
Yes. Naltrexone is sometimes used to support recovery after heroin or other opioid use, but only once a person is fully opioid-free. Taking opioids while on naltrexone can be dangerous, so medical supervision is essential.
How are patients supported while taking naltrexone?
Patients taking naltrexone benefit from regular check-ins with a care team, therapy, and community support. At Casa Capri Recovery, women receive compassionate, individualized care that addresses both substance use and the emotional healing needed for long-term recovery.
