Best treatment for enlarged prostate: Terazosin or Saw Palmetto?

Question 1: Terazosin or Saw Palmetto?

Hello Duane,

The first issue is your fever. Fever changes this from a routine discussion about choosing a BPH supplement into a situation that may require prompt examination.

Fever + Poor Urine Flow Needs Medical Assessment

Acute bacterial prostatitis can cause:

• fever and chills;
• urinary frequency and urgency;
• burning or pain during urination;
• difficulty starting the stream;
• a weak or interrupted stream; and
• urinary retention or inability to empty the bladder.

A urinary tract infection can also occur in men with poor bladder emptying.

The fact that the urine stream became somewhat stronger over three days does not prove that the infection or retention has resolved.

Do Your Symptoms Prove You Have Early BPH?

No.

The old answer described this as an early stage of prostate enlargement. That conclusion cannot be made from the symptoms alone.

Weak flow, dribbling and incomplete emptying may be caused by:

• BPH and prostate obstruction;
• acute or chronic prostatitis;
• urinary infection;
• urethral stricture;
• bladder-neck obstruction;
• weak bladder muscle contraction; or
• more than one of these conditions together.

See our guide to incomplete bladder emptying and urinary retention.

What Tests Would Be Useful?

Depending on your current symptoms, a clinician may consider:

• urinalysis;
• urine culture if bacterial infection is suspected;
• post-void residual urine measurement;
• uroflowmetry;
• physical examination;
• prostate size assessment when it will influence treatment;
• PSA at an appropriate time when clinically useful; and
• additional testing such as cystoscopy or imaging when another obstruction is suspected.

If acute prostatitis or infection is present, treatment should be directed at that problem rather than adding another supplement.

How Does Terazosin Work?

Terazosin is an alpha-1 blocker. Current European urology guidelines strongly recommend alpha blockers for men with moderate-to-severe lower urinary tract symptoms.

It works by relaxing smooth muscle around the prostate and bladder neck, which can:

• improve urinary flow;
• reduce hesitancy;
• reduce straining; and
• improve overall BPH symptom scores.

However, terazosin does not substantially shrink the prostate and does not by itself prevent future urinary retention or the need for BPH surgery.

Is Terazosin 10 mg a Mild Dose?

Terazosin 10 mg is a substantial established BPH dose. I would not increase, stop or restart it without discussing the change with the prescriber.

Terazosin can lower blood pressure and may cause:

• dizziness;
• light-headedness;
• orthostatic hypotension when standing;
• weakness; and
• occasionally fainting (syncope).

The risk is particularly relevant when treatment is first started, the dose is increased, or the medicine is restarted after an interruption.

Does Saw Palmetto Work as Well as Terazosin?

No evidence supports treating them as equivalent.

The U.S. National Center for Complementary and Integrative Health states that enough research has been done to conclude that saw palmetto is probably not helpful for BPH urinary symptoms.

A 2023 review of 27 studies found that saw palmetto used alone provided little or no benefit for BPH symptoms. NIH-funded trials also failed to show meaningful improvement compared with placebo, even at higher-than-usual doses.

If Terazosin Is Not Enough, What Comes Next?

The answer depends on prostate size and the type of symptoms.

If the Prostate Is Clearly Enlarged

A 5-alpha-reductase inhibitor such as finasteride or dutasteride may be considered in selected men with demonstrable enlargement and increased progression risk. These medicines work slowly but can reduce prostate volume and lower the risk of future urinary retention and BPH-related surgery.

If Urgency and Frequency Predominate

If post-void residual is acceptable, a clinician may consider treatment directed at bladder-storage symptoms, such as an antimuscarinic or beta-3 agonist.

If Significant Retention or Obstruction Is Present

If the bladder is retaining a large amount of urine despite appropriate medication, a BPH procedure may be more appropriate than adding supplements.

See our complete BPH medication guide.

Do Antibiotics Help?

Only when there is a bacterial infection that warrants antibiotic treatment.

The old page correctly suggested testing for infection, but antibiotics should be selected according to the clinical diagnosis and culture results when appropriate. They should not be taken routinely simply because BPH symptoms worsen.

What About Urinary Alkalinizers and Vitamin C?

Neither is a substitute for treating a bacterial infection.

Urinary alkalinizing products may change urine pH and can sometimes affect urinary discomfort in specific circumstances, but they do not eradicate bacteria or relieve prostate obstruction.

Vitamin C should not be presented as a standard treatment for a male urinary tract infection or BPH.

Should You Drink Uva Ursi Tea?

I would remove this recommendation.

The European Medicines Agency limits the traditional-use indication for uva ursi (bearberry leaf) to adult women with mild recurrent lower urinary tract symptoms after serious conditions have been excluded. The EMA specifically excludes men from this traditional self-treatment indication because urinary infection in men requires medical assessment.

Uva ursi also does not treat BPH obstruction.

What About Rose-Hip Tea?

Rose hip (Rosa canina) can be consumed as a beverage, but there is no good evidence that drinking rose-hip tea shrinks the prostate, corrects urinary retention or improves BPH enough to replace established therapy.

Question 2: Home Remedies for Frequent Urination and Nocturia

Hello Fady,

Going to the bathroom every hour deserves evaluation before assuming that an enlarged prostate is responsible.

Frequency can occur with BPH, but also with:

• overactive bladder;
• urinary infection;
• diabetes;
• large fluid or caffeine intake;
• diuretic medicines;
• bladder stones;
• prostatitis;
• poor bladder emptying; and
• other urinary conditions.

Lower-back discomfort is also not specific for BPH.

What Should Be Checked?

A reasonable initial assessment may include:

• medical and medication history;
• urinalysis;
• post-void residual if incomplete emptying is suspected;
• prostate evaluation when appropriate;
• blood glucose if clinically indicated; and
• a 3-day bladder diary if frequency or nocturia is a major concern.

The bladder diary records when and how much you drink and how much urine you pass. It can show whether you are producing too much urine overall, producing unusually large amounts at night, or urinating frequently in small volumes.

Home Measures That Are Actually Reasonable

1. Adjust Fluid Timing—Do Not Dehydrate Yourself

Current EAU guidance supports reducing fluid intake at specific times when urinary frequency is most inconvenient—for example, in the evening when nocturia is a problem.

That does not mean eliminating fluids or following a rigid universal water schedule. Drink enough to avoid thirst and dehydration.

2. Reduce Caffeine or Alcohol if They Worsen Symptoms

Caffeine and alcohol can increase urine production or bladder irritation in some men and may worsen urgency, frequency and nocturia.

You do not need to avoid them solely because you have a prostate, but reducing them is reasonable if you notice a clear relationship.

3. Try Relaxed or Double Voiding

After urinating, remain relaxed for a short time and try again. Double voiding can help some men who feel incompletely empty.

Do not strain forcefully.

4. Treat Constipation

Constipation can aggravate lower urinary tract symptoms and should be addressed as part of general self-care.

5. Review Medicines

Diuretics and some other medicines can increase frequency. Decongestants and certain antihistamines can worsen bladder emptying in susceptible men.

Do not stop prescription medicines yourself; ask your clinician whether timing or alternatives should be considered.

Do Fried Foods, Pickles, Chili or Citrus Enlarge the Prostate?

No.

The old page suggested these foods might increase prostate size. There is no evidence that eating chili, fried food, citrus fruit or pickles directly enlarges the prostate.

Some foods or drinks may aggravate bladder symptoms in individual people. If you consistently notice that a particular food worsens urgency or burning, reducing it is reasonable. Blanket elimination diets are unnecessary.

Can Home Remedies Prevent Prostate Cancer?

No home remedy discussed on this page has been shown to prevent prostate cancer.

BPH and prostate cancer are separate conditions. BPH does not turn into prostate cancer.

Whether prostate-cancer screening is appropriate should be discussed according to age, health, family history and previous PSA results rather than inferred from urinary frequency.