← Drug quick-reference

Tamsulosin

Brand: Flomax

Alpha blockerUsed for: Enlarged prostate (BPH)Other High-Yield

Common side effects

  • Dizziness
  • Low blood pressure on standing
  • Abnormal ejaculation
  • Runny nose
  • Headache

Key interactions & cautions

  • Adds to blood-pressure lowering drugs
  • Caution with erectile-dysfunction drugs
  • Some drugs raise its levels
  • Caution with other alpha blockers

Counseling points

  • Take about 30 minutes after the same meal daily
  • Rise slowly to reduce dizziness
  • May cause dizziness with first doses
  • Tell your eye surgeon before cataract surgery
  • Do not crush or chew the capsule
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High-yield study aid for exam prep — not a substitute for the package insert or a pharmacist’s dispensing reference.