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# Disulfiram 250 mg ## SHORT DESCRIPTION Disulfiram 250 mg is a **prescription medicine used as an aid in the treatment of alcohol dependence**. It works by interfering with the breakdown of alcohol in the body. When alcohol is consumed while taking disulfiram, a buildup of acetaldehyde can occur, causing an unpleasant reaction known as the **disulfiram-alcohol reaction**. Disulfiram does not reduce alcohol cravings directly and does not treat alcohol withdrawal. It is most effective when used as part of a comprehensive alcohol-dependence treatment program with appropriate medical and psychosocial support. ## KEY BENEFITS * Helps support abstinence from alcohol * Creates a strong deterrent against alcohol consumption * Produces an unpleasant reaction if alcohol is consumed during treatment * Can be used as part of a supervised alcohol-dependence treatment program * May help reinforce commitment to maintaining alcohol abstinence ## USES / INDICATIONS Disulfiram 250 mg is primarily used for: * **Alcohol dependence** * Supporting continued abstinence from alcohol * Deterring alcohol consumption in patients who are motivated to remain alcohol-free Disulfiram should be used alongside appropriate counseling, behavioral support and medical supervision when possible. **Important:** Disulfiram is not a treatment for acute alcohol intoxication or alcohol withdrawal. ## HOW IT WORKS Normally, alcohol is metabolized in the body to **acetaldehyde**, which is then converted into acetate. Disulfiram blocks the enzyme **aldehyde dehydrogenase**, preventing normal breakdown of acetaldehyde. If alcohol is consumed while disulfiram is active, acetaldehyde can accumulate and cause symptoms such as: * Flushing * Headache * Sweating * Nausea * Vomiting * Rapid heartbeat * Low blood pressure * Breathing difficulty This unpleasant reaction acts as a deterrent to drinking alcohol. ## DOSAGE & ADMINISTRATION * The dose must be individualized by a healthcare professional. * **250 mg once daily** may be used as a maintenance dose in some adults. * Some treatment regimens begin with a higher dose under medical supervision before transitioning to a maintenance dose. * Take disulfiram exactly as prescribed. * It may be taken with or without food. * Take it at approximately the same time each day. * Disulfiram should **not be started while alcohol is still present in the body**. * Patients should generally have avoided alcohol for at least **12 hours before starting treatment**, according to medical guidance. * Continue treatment only as directed by your healthcare professional. ### Missed Dose Take the missed dose when remembered unless it is close to the next scheduled dose. Do not take two doses together to compensate for a missed dose. ## SIDE EFFECTS Possible side effects include: * Headache * Drowsiness * Fatigue * Metallic or garlic-like taste * Bad breath * Nausea * Stomach discomfort * Skin rash * Reduced sexual function * Tingling or numbness in the hands or feet ### Serious Side Effects Disulfiram can rarely cause serious complications, including: * **Liver injury or hepatitis** * Severe allergic reactions * Peripheral neuropathy * Psychotic or psychiatric symptoms * Severe weakness Seek medical attention if you develop: * Yellowing of the skin or eyes * Dark urine * Persistent nausea or vomiting * Severe abdominal pain * Unusual fatigue * Severe rash * Numbness or weakness * Changes in behavior or mental state ## PRECAUTIONS & WARNINGS * **Do not consume alcohol while taking disulfiram.** * Avoid alcohol for at least the period recommended by your healthcare professional after stopping disulfiram because sensitivity to alcohol may persist. * Alcohol may be present in unexpected products, including certain cough syrups, mouthwashes, sauces, vinegar-based products, liquid medicines, cosmetics and other preparations. * Always check product labels for alcohol or ethanol. * Tell your doctor if you have **liver disease**. * Liver function tests may be required before and during treatment. * Tell your doctor if you have kidney disease, diabetes, epilepsy or a history of psychiatric illness. * Disulfiram should not be used to manage acute alcohol withdrawal. * Do not administer disulfiram to a person who is intoxicated or without their knowledge. * Inform your doctor if you are pregnant, planning pregnancy or breastfeeding. * Use caution when driving or operating machinery if the medicine causes drowsiness or dizziness. * Report symptoms of peripheral neuropathy, such as numbness, tingling or weakness. * Disulfiram is most effective when the patient is motivated to remain abstinent and receives appropriate support. ## DRUG INTERACTIONS Disulfiram can interact with several medicines and substances, including: * **Alcohol-containing products** — can cause a potentially severe disulfiram-alcohol reaction. * **Metronidazole** — may increase the risk of psychiatric reactions and is generally avoided with disulfiram. * **Warfarin** — disulfiram can increase the effects of warfarin and may increase bleeding risk. * **Phenytoin** — disulfiram can increase phenytoin levels and toxicity. * **Isoniazid** — may increase the risk of neurological or psychiatric adverse effects. * **Certain sedatives or medicines metabolized by the liver** — disulfiram may alter their metabolism. * **Alcohol-containing medicines or preparations** — can trigger a disulfiram-alcohol reaction. Always inform your doctor and pharmacist about all prescription medicines, over-the-counter medicines, supplements and herbal products you use. ## STORAGE INFORMATION * Store according to the manufacturer's instructions. * Keep tablets in their original packaging. * Protect from excessive heat, moisture and direct sunlight. * Keep the container tightly closed where applicable. * Keep out of reach of children. * Do not use after the expiry date. * Do not use tablets if the packaging is damaged or the tablets appear abnormal. ## PRESCRIPTION STATUS **Prescription medicine.** Disulfiram 250 mg should be used only under the supervision of a qualified healthcare professional. Treatment should ideally be accompanied by appropriate medical monitoring and support for alcohol dependence. ## GENUINE MEDICINE ASSURANCE For safe and genuine medicine use: * Purchase Disulfiram 250 mg only from a licensed and reputable pharmacy. * Check the medicine name and strength. * Verify the batch number and expiry date. * Ensure the packaging and seal are intact. * Check the manufacturer's details. * Avoid products with damaged, altered or suspicious packaging. * Purchase medicines only from authorized sources. * Consult a pharmacist if you have concerns about product authenticity. ## FAQ ### What is Disulfiram 250 mg used for? Disulfiram 250 mg is used as an aid in the treatment of **alcohol dependence**. It helps maintain abstinence by causing an unpleasant reaction if alcohol is consumed. ### Is Disulfiram a treatment for alcohol addiction? Disulfiram can support treatment for alcohol dependence, but it is **not a complete treatment by itself**. It works best as part of a comprehensive treatment plan that may include counseling, behavioral therapy and medical support. ### How does Disulfiram work? Disulfiram blocks aldehyde dehydrogenase, an enzyme involved in alcohol metabolism. This causes acetaldehyde to accumulate if alcohol is consumed, resulting in an unpleasant physical reaction. ### Can I drink alcohol while taking Disulfiram? **No.** Alcohol should be completely avoided while taking disulfiram because even relatively small amounts can trigger a potentially severe reaction. ### What happens if I drink alcohol while taking Disulfiram? A disulfiram-alcohol reaction may cause flushing, headache, sweating, nausea, vomiting, rapid heartbeat, low blood pressure, breathing difficulty and other potentially serious symptoms. ### Can alcohol in medicines trigger a Disulfiram reaction? Yes. Some liquid medicines, cough syrups, mouthwashes and other products may contain alcohol. Check labels carefully and ask a pharmacist if you are uncertain. ### Can I use alcohol-based mouthwash while taking Disulfiram? It is safer to avoid alcohol-containing mouthwash and choose an alcohol-free alternative because alcohol exposure may potentially trigger a reaction. ### How long should I avoid alcohol after stopping Disulfiram? Sensitivity to alcohol can persist for **up to several weeks** after stopping disulfiram. Follow your doctor's specific instructions and avoid alcohol until your healthcare professional confirms that it is safe. ### How long after drinking alcohol can I start Disulfiram? Disulfiram should not be started while alcohol is present in the body. Patients are generally advised to remain alcohol-free for **at least 12 hours** before starting, but your doctor may provide individualized instructions. ### Does Disulfiram reduce alcohol cravings? Disulfiram primarily acts as a **deterrent to drinking**. It does not directly reduce alcohol cravings in the same way as some other medicines used for alcohol dependence. ### Can Disulfiram be taken during alcohol withdrawal? Disulfiram does **not treat acute alcohol withdrawal** and should not be used as a substitute for medically supervised withdrawal treatment. ### Can Disulfiram damage the liver? Rarely, disulfiram can cause serious liver injury. Your doctor may perform liver-function testing and you should report symptoms such as jaundice, dark urine, severe fatigue or abdominal pain promptly. ### Can Disulfiram cause nerve problems? Peripheral neuropathy can occur rarely. Contact your doctor if you develop persistent numbness, tingling, burning sensations or weakness in the hands or feet. ### Can Disulfiram be taken with Metronidazole? The combination is generally avoided because it may increase the risk of adverse psychiatric effects. Tell your doctor that you take disulfiram before starting metronidazole. ### Can Disulfiram be taken with Warfarin? Disulfiram can increase the effects of warfarin in some patients. If both are required, your doctor may need to monitor blood clotting more closely. ### Can Disulfiram be taken with Phenytoin? Disulfiram may increase phenytoin concentrations and the risk of toxicity. Medical supervision and monitoring may be required. ### Can women take Disulfiram? Disulfiram may be prescribed to women when clinically appropriate. Women who are pregnant, planning pregnancy or breastfeeding should discuss treatment with their healthcare professional. ### Can Disulfiram be taken during pregnancy? Pregnancy requires individualized medical assessment. Tell your doctor if you are pregnant or planning pregnancy before starting disulfiram. ### What should I do if I miss a dose? Take the missed dose when you remember unless it is nearly time for the next dose. Do not take a double dose to compensate for a missed dose. ### What should I do if I accidentally consume alcohol? Stop consuming the alcohol and seek medical advice. If you experience severe flushing, chest pain, difficulty breathing, fainting, severe vomiting or other serious symptoms, seek emergency medical attention immediately. ### Can I stop Disulfiram suddenly? Disulfiram does not generally require a taper, but you should discuss stopping treatment with your doctor because alcohol sensitivity can persist after discontinuation. ### How should Disulfiram 250 mg be stored? Store it according to the manufacturer's instructions, away from excessive heat, moisture and direct sunlight. Keep it in the original packaging and out of reach of children. ## MEDICAL DISCLAIMER This information is provided for educational and informational purposes only and should not replace professional medical advice, diagnosis or treatment. Disulfiram 250 mg is a prescription medicine used as part of the treatment of alcohol dependence and should only be taken under appropriate medical supervision. **Alcohol and alcohol-containing products must be avoided during treatment and for the period advised by the healthcare professional after stopping treatment.** Disulfiram does not treat acute alcohol intoxication or withdrawal. Liver function and potential drug interactions should be assessed by a healthcare professional. Never administer disulfiram to another person without their knowledge or consent. Seek urgent medical attention if a severe disulfiram-alcohol reaction or serious adverse effect occurs.