What are Flomax (tamsulosin) side effects?

Possible side effects of Flomax are listed below. Contact your doctor if these side effects are severe or do not improve with time.

• Headache
• Dizziness
• Drowsiness
• Runny or stuffy nose
• Problems with ejaculation
• Weakness
• Insomnia (trouble falling asleep or staying asleep)
• Diarrhea
• Back pain
• Blurred vision
• Pain or pressure in the face
• Sore throat, cough, fever, chills

Flomax can cause certain serious adverse effects. Call your doctor right away if you experience:

• Rash, hives, itching
• Swelling of the face, eyes, mouth, tongue, throat, hands, feet
• A painful erection that lasts for hours

The above list may not include all the potential side effects of Flomax. Talk to your doctor if you have severe side effects or the side effects do not improve over time. You can also report an unusual or allergic reaction to the Food and Drug Administration at 1-800-FDA-1088.

Flomax Overdose: Call your doctor and get medical attention immediately in case of a known or suspected overdose. If the person can’t be awakened, has had a seizure, or has trouble breathing, call 911 or take them to the nearest emergency room. Symptoms of a Flomax overdose may include headache, dizziness, fainting, blurred vision, and stomach upset.

NOTE: Flomax is a prescription drug intended to be used only by the respective owners. Never share your prescription medication with others or use someone else’s medicine.

Source: FDA