What is Methadone 40mg used for?
Methadone 40mg is itself an opioid and can be addictive. It’s possible for some people to become addicted to methadone as they use it to wean themselves off of another prescription painkiller.
Methadone 40mg is a strong, synthetic (man-made) narcotic that acts on the central nervous system (brain) in a manner similar to other narcotics. It is used in the management of narcotic addiction and for pain control.
The initial dose of oral methadone in patients who require continuous pain control throughout the day can range from 2.5 to 10 mg given every 8 to 12 hours. Those who are seriously ill may need to be started at an oral dose of 10-40 mg given every 6-12 hours. The initial total daily dose for detoxification usually is higher, and this can range from 20 to 120 mg daily. The usual dose for methadone solution for injection when treating moderate to severe pain in patients who require continuous pain control is 2.5 to 10mg given as intravenous, subcutaneous or intramuscular injection every 8-12 hours.
The total daily amount of methadone that a person is prescribed is not fixed, and it will depend on many factors including the severity of the pain, prior use of methadone, medications that are being taken concomitantly, the response to treatment and other factors that may be specific to a person. Therefore, each person has to be monitored carefully while receiving methadone. When stopping therapy, the dose of methadone should be gradually reduced in order to avoid withdrawal symptoms.
Side effects Methadone 40mg
More common side effects
The more common side effects of Methadone 40mg can include:
- stomach pain
If these effects are mild, they may go away within a few days or a couple of weeks.
Serious side effects
Serious side effects and their symptoms can include the following:
- Respiratory failure (not being able to breathe). Symptoms can include:
- shortness of breath
- chest pain
- feeling faint
- slowed breathing
- very shallow breathing (little chest movement with breathing)
- Orthostatic hypotension (low blood pressure when getting up after sitting or lying down). Symptoms can include:
- low blood pressure
- dizziness or lightheadedness
- Physical dependence and withdrawal when stopping the drug. Symptoms can include:
- irritability or anxiousness
- trouble sleeping
- increased blood pressure
- fast breathing rate
- fast heart rate
- dilated pupils (enlargement of the dark center of the eyes)
- teary eyes
- runny nose
- nausea, vomiting, and a loss of appetite
- diarrhea and stomach cramps
- muscle aches and backache
- Misuse or addiction. Symptoms can include:
- taking more of the drug than prescribed
- taking the drug regularly even if you don’t need it
- continuing to use the drug despite negative outcomes with friends, family, your job, or the law
- ignoring regular duties
- taking the drug secretly or lying about how much you’re taking
When Methadone 40mg is less effective: When methadone is used with certain drugs, it may not work as well to treat your condition. This is because the amount of methadone in your body may be decreased. Examples of these drugs include:
- Anticonvulsants, such as phenobarbital, phenytoin, and carbamazepine. These drugs can cause methadone to stop working. This could cause withdrawal symptoms. Your doctor may change your dosage of methadone.
- HIV drugs such as abacavir, darunavir, efavirenz, nelfinavir, nevirapine, ritonavir, and telaprevir. Your doctor will monitor you closely for symptoms of withdrawal. They’ll adjust your dosage as needed.
- Antibiotics, such as rifampin and rifabutin. These drugs can cause Methadone 40mg to stop working. This could cause withdrawal symptoms.We have stock Farmapram.