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Flomax Side Effects

The more common Flomax side effects are usually transient, this means that in a lot instances, once your body becomes accustomed to the medication it will adjust and they will most likely subside.

Flomax is used to treat the signs and symptoms of BPH - Benign Prostatic Hypertrophy. Flomax has some very specific warnings that you need to be aware. If you weren't advised of them prior to starting treatment with this medication then now is a great time to know.

  • There is a high potential for Flomax to cause fainting because using this medication can very frequently result in a condition known as "orthostasis". Symptoms of orthostasis include dizziness, vertigo and a rapid drop in blood pressure when you stand up from a sitting or lying down position. You'll need to be careful to avoid situations where you could possibly faint.
  • There can be some severe drug interactions with Flomax and certain other drugs. Feel free to contact me directly if you need more information about what these drug interactions are.
  • In rare instances, Flomax can cause priapism. Priapism can cause permanent impotence so if it does happen to you or someone you know, be sure to report this to your healthcare provider.
  • If you have a sulfa allergy then you should be cautious about using Flomax; let your doctor know because some people with sulfa allergies have had allergic reactions to Flomax as well.

Flomax Side Effects

  • Abnormal ejaculation
  • Asthenia - general muscle weakness and loss of strength
  • Back pain
  • Blurred vision
  • Chest pain
  • Cough increased
  • Decreased libido
  • Diarrhea
  • Dizziness
  • Headache
  • Infection
  • Insomnia
  • Nausea
  • Pharyngitis - sore throat
  • Rhinitis - runny nose
  • Sinusitis - sinus infection/inflammation
  • Somnolence - drowsiness
  • Tooth disorder

Post-Marketing Flomax Side Effects

The following Flomax side effects were reported AFTER Flomax was approved and being used by the general population. You should note though that they were reported voluntarily by folks in the general population so there is therefore no way to determine how often they occur or if there is even really a true connection between them and Flomax.

  • Allergic-type reactions such as skin rash, urticaria (hives), pruritus (itching), angioedema, and respiratory symptoms
  • Constipation
  • Hypotension - low blood pressure
  • Intraoperative Floppy Iris Syndrome (IFIS) - a condition that can occur during cataract surgery
  • Palpitations
  • Priapism - unwanted erection
  • Skin desquamation - sloughing off or shedding of the outer layer of the skin
  • Vomiting

I observe the physician with the
same diligence as the disease.

- John Donne

Drug Manufacturer Information

Astellas Pharma Technologies, Inc.
Three Parkway North
Deerfield, IL 60015-2548
(800) 695-4321

This website is updated quite frequently (as things change so rapidly in the world of pharmaceuticals), so if you find the information here useful please subscribe to our monthly newsletter - The Armchair Pharmacist. It tells you each month about new information that has been added to the site as well additional news on the latest goings-on in the world of medications and all things pharma.

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References:

  • U.S. National Library of Medicine - www.medlineplus.gov
  • Astellas Pharma Corporate website - www.astellas.us
  • U.S. Food & Drug Administration - www.fda.gov

March 18, 2010


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