General English name: Methenamine

Brand: Hiprex, Mandelamine, Urex

Application: Urinary tract infection


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Medicated forms of medicine



Contain drug information

Methamphetamine is used to prevent recurrence of urinary tract infections caused by certain bacteria, but it is not used to treat active infections, other antibiotics must first be used to treat the infection. Methamphetamine is an antibiotic that stops the growth of bacteria in the urine. It also contains substances that help acidify urine. When urine is acidic, methamphetamine is converted to formaldehyde to kill bacteria.

This antibiotic is only effective for bacterial urinary tract infections. It will not work for other types of bacterial infections (such as blood clots) or viral infections (such as colds or flu).

Methamphetamine prevents the spread of infection by preventing the growth of bacteria.


The correct amount and method of taking Methenamine

Read the package leaflet carefully before starting treatment with the antibiotic methamphetamine. If you have any questions about how to use this medicine, ask your doctor.

The dose of this drug is determined by the doctor based on the patient’s weight, age and condition.

To improve the effect of the antibiotic methamphetamine, take the medicine every day, at certain times of the day.

Stop taking the medicine as long as it is prescribed for you. Early discontinuation of the drug may lead to recurrence of the infection.

Unnecessary or improper use of any antibiotic can reduce its effectiveness.

If you forget to take your daily dose at the right time but soon forget to take it; But if you remember when the next dose is about an hour away, do not take the missed dose. You should not take two doses of the medicine together because of the missed dose.


Contraindications to methamphetamine

Pay attention to the expiration date of Methamphetamine and do not take it if it has expired.

Never give Methenamine to another person, even if you have the same symptoms.

Check for drug interactions with methamphetamine, and if you are taking a drug that interacts with this medication, talk to your doctor about using your medications.

Methamphetamine use during pregnancy and lactation

During pregnancy and lactation, you should not use the drug arbitrarily without consulting your doctor. However, taking methamphetamine during pregnancy does not endanger the health of the fetus, and you can use this antibiotic with a doctor’s prescription.


The effect of taking Methenamine on driving

Methamphetamine can not make you drowsy, you do not need to avoid driving.


Intermediate drug interactions

Drug interactions may alter drug performance and increase the risk of serious side effects. Make a list of all the medicines (including prescription / over-the-counter and herbal medicines) you use and share them with your doctor and pharmacist. Do not change the dose of your medicine without consulting your doctor or stop taking the medicine.

Be sure to tell your doctor if you are taking any of the following medicines: sulfonamides (sulfa antibiotics such as sulfamethysol), products that reduce uric acid levels (urinary alkalizers such as antacids, sodium bicarbonate, potassium sodium or sodium bicarbonate). Carbonic acid such as acetazolamide).

This drug may interfere with certain laboratory tests and may lead to false test results. Before testing, tell your lab staff and all your doctors that you have used this medicine.


Methenamine Warning

Some medications may not be prescribed under certain conditions, and some medications may be prescribed if additional treatment is needed; Therefore, it is best for your doctor to be aware of the following before taking methamphetamine:


Side effects of methamphetamine

All medications can cause side effects. But many consumers also do not experience any side effects. Some of the side effects go away after a short time of taking the medicine. In case of persistent side effects, the physician should be informed:


Stomach ache

Nausea and vomiting

Abdominal muscle cramps

Decreased appetite

Bloody urine, headache, frequent urination, heartburn: See your doctor if you have these symptoms.

Allergic symptoms such as hives, nausea, vomiting and red skin rash

Consult your doctor if you have any other symptoms that you feel are due to the use of Methenamine.


Side effects of methenamine overdose (methenamine poisoning)

Do not take more than the dose prescribed by your doctor.

If you feel that someone has been poisoned and you have symptoms such as shortness of breath, fainting and weakness (fainting), call the emergency room immediately.


Storage conditions of Methenamine

Keep the medicine out of the reach of children.

Store the medicine in a cool, dry place away from heat and direct sunlight.