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Tamsulosin is a custom pharmacy drug that is classified in the family of drugs known as alpha blockers. It is a drug that is given to men who have problems with urination, mostly due to an enlarged prostate (benign prostatic hyperplasia). In many patients, tamsulosin successfully relaxes certain muscles within the bladder and prostate, which allows urine to flow freely reducing or preventing the nagging symptoms of an enlarged prostate. Symptoms of an enlarged prostate can include painful urination, difficulty urinating (e.g., dribbling or weak stream, urinary hesitancy, incomplete emptying of bladder), and urinary urgency.


Tamsulosin should be taken orally in most cases, typically once per day as prescribed by your doctor. Tamsulosin should be taken on a regular schedule. Take tamsulosin at the same time of day on the days you are instructed to take it. Tamsulosin should be taken approximately 30 minutes after your meal. Once a time of day is chosen, stick with it throughout your entire course. Consult with your compounding pharmacist if you have general questions about this medication. Consult with your doctor right away if you are having any problems taking this medication.


The benefits of modern medications often outweigh the negatives, but in most cases, side effects are a possibility so talk to your doctor and be prepared. Knowing what to watch for will be greatly beneficial in case you do experience any side effects. Always see your doctor if you experience a side effect that worsens or lingers. Common side effects seen with tamsulosin are:

  • Runny Nose
  • Stuffy Nose
  • Sleepiness
  • Difficulty Falling Asleep
  • Trouble Staying Asleep
  • Difficulty Ejaculating
  • Back Pain
  • Weakness
  • Diarrhea
  • Pain in Face
  • Pressure in Face
  • Blurry Vision
  • Possible Signs of Infection (sore throat, cough, fever, chills)

Severe Side Effects Overview:

Some patients may unfortunately experience some severe side effects. If you experience anything that feels severe or anything that is listed below, see your doctor immediately or get emergency medical assistance right away.

  • Painful Erection (that lasts for hours)
  • Itching
  • Rash
  • Hives
  • Swelling (eyes, face, tongue, lips, or throat)
  • Swelling (arms, hands, feet, ankles, or lower legs)


All patients considering the use of tamsulosin should schedule an appointment with their doctor, have a full medical screening, and allow their doctor to decide if tamsulosin will be safe for their use. Never begin taking any drug unless you first receive the approval of your doctor to take it.

Tamsulosin may be contraindicated for the following:

  • Severe Liver Problems
  • Allergy to any Ingredient of Tamsulosin
  • History of Fainting (specifically after passing urine)
  • History of Dizziness or Fainting in General (Ask your doctor for more information.)

Tamsulosin may be contraindicated for many other issues, diseases, conditions (medical or otherwise), as well as drug interactions. It is very important to discuss all possible relevant contraindications with your doctor before beginning any use of tamsulosin.

  • "It is rare to find health professionals who are so willing to educate the patient on what they need to know."

    Clair C. | West Hollywood, CA