Penegra 25 Mg (Sildenafil Citrate)

What is Penegra 25 mg?

How It Works (Mechanism of Action)

Sildenafil restores the body’s natural erection pathway:

Dosage Guide

Patient Group	Recommended Dose	Maximum Frequency	Key Notes
Men aged 65 and over	25 mg	Once in 24 hours	This is the recommended starting dose
Mild to moderate liver impairment	25 mg	Once in 24 hours	Do not increase without medical review
Severe kidney impairment (CrCl under 30 mL/min)	25 mg	Once in 24 hours	Requires specialist supervision
Taking alpha-blockers (tamsulosin, doxazosin)	25 mg	Once in 24 hours	Stabilise the alpha-blocker dose first
Taking CYP3A4 inhibitors (ketoconazole, erythromycin, clarithromycin)	25 mg	Once in 24 hours	This is the maximum for these patients
Taking ritonavir or cobicistat	25 mg	Once in 48 hours	Strict maximum; do not dose daily
Men who had side effects at 50 mg	25 mg	Once in 24 hours	Often resolves the problem
Healthy adult men, first-time use	50 mg is standard	Once in 24 hours	25 mg is a cautious alternative
Good response at 25 mg	25 mg	Once in 24 hours	Stay at the lowest effective dose
Inadequate response at 25 mg	50 mg	Once in 24 hours	Only after a doctor’s review
Severe liver impairment	Not recommended	–	Sildenafil should be avoided
Absolute daily maximum	100 mg	One dose per 24 hours	Applies to healthy adults only

How to Take It

Precautions

Absolute Contraindications – Do Not Use If You

These apply at every strength, including 25 mg.

Conditions to Disclose to Your Doctor

Tell your doctor before use if you have or had:

Give a full list of your medicines. This matters most for older patients, who often take several.

Food and Drink Precautions

Item	Effect	Recommendation
High-fat meals	Delay absorption and onset	Take on an empty stomach or after a light meal
Grapefruit and grapefruit juice	Raise sildenafil blood levels	Avoid entirely on dosing days
Alcohol	Impairs erection and lowers blood pressure	Limit strictly; avoid binge drinking
Excess caffeine	May worsen palpitations and headache	Reduce intake around dosing
Water	No interaction	Use a full glass to swallow the tablet
Grapefruit-containing supplements	Same risk as the fruit	Check labels and avoid
Seville oranges and pomelo	May affect the same enzyme pathway	Best avoided on dosing days

Before-Use Safety Checklist

Confirm every point below before each dose:

Side Effects

Side effects are dose-related. They are least common at this strength.

Side Effect	Frequency	What To Do
Headache	Common	Usually mild; rest and hydrate
Facial flushing or warmth	Common	Settles as the drug wears off
Indigestion or heartburn	Common	Avoid heavy or spicy meals
Blocked or runny nose	Common	Temporary; no treatment usually needed
Dizziness	Common	Sit or lie down; do not drive
Blurred or blue-tinged vision	Less common at 25 mg	Avoid driving; tell your doctor
Light sensitivity	Less common at 25 mg	Avoid bright screens and sunlight
Nausea	Less common	Take with a light snack next time
Back pain or muscle ache	Less common	Usually resolves within 24 hours
Rapid or pounding heartbeat	Less common	Rest; seek advice if it persists
Nosebleed	Less common	Apply pressure; report if repeated
Dry mouth or altered taste	Less common	Sip water regularly
Skin rash or itching	Less common	Stop use and contact your doctor
Low blood pressure symptoms	Less common	Stop use; seek medical advice
Ringing in the ears	Less common	Report to your doctor
Fainting or near-fainting	Rare	Stop use; seek medical care
Chest pain	Rare	Emergency; see section 8
Priapism (erection over 4 hours)	Rare	Emergency; see section 8
Sudden vision loss (NAION)	Rare	Emergency; stop use permanently
Sudden hearing loss or tinnitus	Rare	Emergency; stop use immediately
Seizure	Very rare	Emergency; call for help
Severe skin reaction with blistering	Very rare	Emergency; stop use immediately

Serious effects remain possible at this dose. They are rarer, not absent. Report anything severe or persistent to your doctor.

Drug Interactions – Avoid With

Never combine (dangerous):

Reasons this strength is often prescribed:

These drugs raise sildenafil blood levels. 25 mg is usually the maximum advised alongside them.

Use with medical supervision:

Always show your doctor a full list of your medicines.

Emergency Warning Signs

Stop the medicine and seek emergency care immediately if you experience:

Tell emergency staff you have taken sildenafil. State the dose as 25 mg. They must not give you nitrate medicines, whatever the dose you took. Untreated priapism can cause permanent erectile damage within hours.

Why Choose Penegra 25 mg

Genuine advantages:

Honest limitations you should know:

This strength is likely right for you if:

Storage Instructions

Medical Disclaimer

This content is for information only. It is not medical advice. Penegra 25 mg is a prescription-only medicine. 25 mg is the lowest approved sildenafil strength and the recommended starting dose for older men and those with liver or kidney impairment. The absolute contraindications, including nitrate medicines, apply at every strength. Nitrate medicines must be avoided for at least 24 hours after a dose. Use it only under a qualified doctor’s supervision. Always read the manufacturer’s package insert before use. Consult your doctor or pharmacist about your specific condition and dose.