Lowers blood pressure and makes it easier to urinate.
Our pharmacists’ bottom line
Prazosin is used mostly to make urination easier for men with an enlarged prostate, but it can cause dizziness.
- Can be added to other blood pressure-lowering medicines if you need additional blood pressure control.
- Makes urination easier in men with an enlarged prostate.
- Helps people with PTSD get better sleep with fewer, less-intense nightmares.
- Not the best medicine to lower blood pressure by itself.
- Likely to cause orthostatic hypotension. This means dizziness when you change positions (like standing up) because your blood pressure doesn't adjust quickly enough.
- Not preferred for people 65 years or older.
Save on your next Minipress (Prazosin) prescription
Be sure you’re getting the lowest price for your medication, even if you have insurance.
- Cost of (30) 1mg capsules of Minipress (Prazosin) at pharmacies
- Rite-Aid$29.46New price:$19.15Save35%
- $25.68New price:$15.15Save41%
- $39.00New price:$27.69Save29%
Side effects for Minipress (Prazosin)
From clinical trials of Prazosin / High blood pressure ( 900)
- DizzinessDizziness10% for Prazosin vs.0% for placebo
- HeadacheHeadache8% for Prazosin vs.0% for placebo
- DrowsinessDrowsiness8% for Prazosin vs.0% for placebo
- Lack of energyLack of energy7% for Prazosin vs.0% for placebo
- WeaknessWeakness7% for Prazosin vs.0% for placebo
- Heart pounding or racing sensationHeart pounding or racing sensation5% for Prazosin vs.0% for placebo
- NauseaNausea5% for Prazosin vs.0% for placebo
Manufacturers don’t say how common these side effects are
- Blurred vision
- Dry mouth
- Low mood disorder
- Nasal congestion
- Positional low blood pressure
- Reddened sclera
- Shortness of breath
- Swelling due to excess fluid
- Urinary frequency
What to expect when you start Minipress (Prazosin)Skip what to expect section. Skip to Risks & Warnings section.
- Check your blood pressure 1 week after starting this medicine, and tell your doctor if it hasn't improved.
- Can cause drowsiness, headache, dizziness, and nausea.
- Take with food or at bedtime to avoid side effects.
- If side effects don't go away, talk to your doctor about alternatives.
- Recheck your blood pressure 1 week after starting this medicine.
Risks and Warnings for Minipress (Prazosin)Skip Risks and Warnings section. Skip to Tips section.
- Higher risk if:
- › Age 65 years or older
You can feel dizzy or fall from a sudden drop in blood pressure when you change positions, such as going from sitting to standing. This is called orthostatic hypotension. If you're sensitive to low blood pressure, change position slowly until your body is used to the medicine. If symptoms continues for more than a week, dose adjustment or a different medication may be needed.
Tips from pharmacists and people taking Minipress (Prazosin)Final section. Do you want to return to drug navigation?
- Tips from our pharmacists
- › Take with food or at bedtime to avoid side effects.
- Upsides and downsides from our pharmacists
- › Helps people with PTSD get better sleep with fewer, less-intense nightmares.