Tamsulosin is the general form of the branded preparation Flomax.
It is used to treat the symptoms of an enlarged prostate, also known as benign prostatic hypertrophy (BPH).
Tamsulosin belongs to the group of drugs known as alpha-1 receptor blockers.
Drugs in this class work by blocking the special receptors found in the prostate gland, known as alpha-1 receptors.
They are designed to improve the flow of urine.
Although usually considered a medicine used to treat an enlarged prostate, tamsulosin can also be prescribed to women who have problems with bladder blockage or obstruction to help them urinate more easily.
Doctors can also prescribe tamsulosin to help the body cleanse kidney stones.
The Food and Drug Administration (FDA) approved tamsulosin hydrochloride (HCL) under the Flomax brand in 1997.
People who have very serious kidney problems should not take tamsulosin. You should also not take tamsulosin if you:
- You have ischemic heart disease (CAD), if your doctor does not recommend the drug
- Have liver disease
- Going to have surgery and get anesthesia
- Suffer from painful erections during unusually long periods of time (priapism)
In addition, people taking tamsulosin for the first time can feel weak or fall.
This usually disappears soon after taking the medication.
Pregnancy and tamsulosin
Tamsulosin is usually considered safe during pregnancy.
Regardless, you should tell your doctor if you are pregnant or plan to become pregnant before taking this medication.
You should also tell your doctor if you are breastfeeding or plan to breastfeed.
It is not recommended that nursing mothers take this medication.
Side effects of Tamsulosin
Headache is the most common side effect of taking tamsulosin. Other common side effects include:
- Runny nose
- Problems with ejaculation
- Decreased sexual desire
Serious side effects of tamsulosin include:
- Sore throat
- Bitter taste in mouth
- Other Visual Problems
Priapism, a painful and potentially dangerous condition in which the erection lasts for hours, is a rare side effect in men taking tamsulosin.
The medicine can also cause vomiting or constipation.
It is always important to share with your doctor and pharmacist all the medications you use.
You should not take tamsulosin if you are also taking the following drugs:
- Medicines for fungal infections such as Sporanox (itraconazole), noxafil (posaconazole), Vfend (voriconazole) and nizoral (ketoconazole)
- Drugs against HIV / AIDS, such as Kaletra (lopinavir / ritonavir), Norvir (ritonavir), and Stribild (cobicistat / elvitegravir / emtricitabine / tenofovir)
- Victrelis (Boceprevir)
- Antibiotics such as chloramphenicol, biaxin (clarithromycin), and ketec (telithromycin)
- Vaprisol (conivaptan)
- Gengraf, Neoral or Sandimmune (cyclosporine)
- Rescriptor (delarvirdin), Lexiva (fosamprenavir)
- Faverin, Fevarin, Floxyfral, Luvox (fluvoxamine)
- Cancer medicines, such as Gleevec (imatinib)
- Serzone (nefazodone)
- Inkivec (teleprevir)
You should also avoid taking tamsulosin if you are taking one of the following:
- Other drugs with alpha-blockers for prostate states, such as Minipress (prazosin), Rapaflo (silodosin), Hytrin (terazosin)
- Quinaglute, Quinidec (quinidine)
- Drugs for depression, such as Zoloft (sertraline) or Prozac (fluoxetine)
- Drugs from depression, such as Paxil (paroxetine), Anafranil (clomipramine) and Norpramine (desipramine)
- Antibiotics such as vibramycin (doxycycline); EryTab, EES or erythromycin (erythromycin); Vigamox (moxifloxacin)
- Medications for irregular heartbeat, such as Cordarone, Nexterone or Pacerone (amiodarone), 444 or Multaq (dronedarone)
- Benadryl (diphenhydramine)
- Medications for mood, such as Haldol (haloperidol) or Clozaril (clozapine)
Talk with your doctor about any alternatives to tamsulosin if you are taking any of these medicines.
Tamsulosin and alcohol
Since tamsulosin can cause dizziness and fainting, it is best to avoid drinking alcohol if you are taking tamsulosin.
Tamsulosin and grapefruit juice
Grapefruit can interact with this drug, so it is recommended to avoid the use of grapefruit while taking this drug.
The dosage of tamsulosin
For enlarged prostate or benign prostatic hypertrophy (BPH): Tamsulosin is usually taken once a day at a dose of 0.4 mg (mg), 30 minutes after a meal.
For best results, try to take tamsulosin at the same time every day.
After your doctor assesses your condition, he or she can increase the dose to 0.8 mg per day.
For kidney stones: the doctor usually prescribes 0.4 mg of tamsulosin, which should be taken once a day.
As soon as you pass the kidney stones, the doctor can tell you to continue taking tamsulosin for a week or two.
Bladder obstruction: women taking sulosin to relieve symptoms of bladder obstruction are usually prescribed doses of 0.4 mg per day.
Overdose of tamsulosin
If you suspect an overdose, immediately contact a poison control center or an emergency room.
The missed dose of tamsulosin
If you miss a dose of tamsulosin, try to take it as soon as you remember, not too close to the time of sleep or to the usual time of taking the next dose.
However, if it is time for the next dose, skip it and resume the regular dosing schedule. Do not double to make up the missed dose.
If you miss several doses of tamsulosin and usually take 0.8 mg per day, your doctor may need to lower the dose.