Description
Fildena 150 is a tablet described as containing sildenafil citrate 150 mg. Sildenafil is a phosphodiesterase type 5 inhibitor (PDE5 inhibitor) indicated for the treatment of erectile dysfunction in adult men. Erectile dysfunction (ED) is when you can't get or keep an erection hard enough for a good sex life. In Canada, sildenafil products are prescription medicines and should be used only after assessment by a healthcare professional. Canadian sildenafil product information commonly lists 100 mg as the maximum recommended dose for erectile dysfunction, so a 150 mg tablet requires particular caution and should not be used without medical supervision.What is Fildena 150?
Fildena 150 is a sildenafil citrate tablet associated with treatment of erectile dysfunction. Sildenafil does not act as a hormone, stimulant, aphrodisiac, or fertility medicine. It supports the body’s natural erectile response only when sexual stimulation occurs. For Canadian websites, it is important to avoid presenting Fildena 150 as automatically equivalent to a Health Canada-authorized product. Health Canada’s Drug Product Database is used to search medicines authorized for sale in Canada, and authorized sexual enhancement products should be verified before purchase or use.How Sildenafil Citrate Works
Sildenafil blocks PDE5, an enzyme that breaks down cyclic guanosine monophosphate, also called cGMP. Penile tissue has nitric oxide signalling that increases cGMP during sexual stimulation. This relaxes the smooth muscle and lets more blood into the erectile tissue. Sildenafil does not produce an erection without sexual stimulation. It doesn’t improve libido or address psychological, hormonal or relational factors of erectile dysfunction either.Medical Uses of Fildena 150
- Erectile dysfunction: Sildenafil is used in adult men who have difficulty achieving or maintaining an erection suitable for sexual activity.
- Erectile dysfunction linked with vascular or metabolic factors: It may be considered after assessment in patients with diabetes, hypertension, or circulation-related risk factors.
- Pulmonary arterial hypertension — sildenafil ingredient only: Sildenafil is used in separate specialist-prescribed formulations for pulmonary arterial hypertension, but Fildena 150 should not be substituted for those treatments.
Who Should Not Use This Medicine
Sildenafil may cause unsafe blood pressure changes in certain people. It should not be used without a medical review, especially at strengths above standard Canadian dosage recommendations.Do NOT use if you have:
- Current nitrate use, including nitroglycerin, isosorbide mononitrate, or isosorbide dinitrate
- Use of recreational nitrites, often called “poppers”
- Use of riociguat or another guanylate cyclase stimulator
- Known allergy to sildenafil or tablet ingredients
- Previous non-arteritic anterior ischaemic optic neuropathy, also called NAION
- Severe or unstable heart disease
- Very low blood pressure or uncontrolled high blood pressure
- A condition where sexual activity has been advised against
Dosage and Administration
Fildena 150 should be taken only as directed by a qualified healthcare professional. Sildenafil dosage depends on age, cardiovascular health, liver function, kidney function, current medicines, and treatment response. In Canadian sildenafil product information, 50 mg is commonly listed as the usual dose for many adults, with 100 mg as the maximum recommended dose for erectile dysfunction. The same Canadian monograph lists sildenafil tablet strengths of 25 mg, 50 mg, and 100 mg. A 150 mg sildenafil tablet is therefore above the commonly recommended maximum dose and may increase the risk of side effects. The tablet is taken by mouth. Do not combine it with other erectile dysfunction medicines unless a prescriber specifically instructs you to do so.Important dosage tips
- Do not take more than one sildenafil dose in 24 hours unless medically directed.
- Sildenafil is commonly taken 30 to 60 minutes before sexual activity.
- It may be taken up to 4 hours before sexual activity if directed.
- A high-fat meal may delay its effect.
- If used as needed, there is usually no regular missed-dose schedule.
- Seek urgent care if an erection lasts longer than 4 hours.
Side Effects
Side effects may be more likely at higher sildenafil exposure. Any severe, unusual, or persistent symptom should be assessed by a healthcare professional.Common side effects
- Headache
- Facial flushing
- Dizziness
- Indigestion or stomach discomfort
- Nasal congestion
- Nausea
- Back pain or muscle aches
- Temporary visual changes, such as light sensitivity or colour tinge
Serious side effects
- Chest pain, fainting, or severe dizziness
- Sudden vision loss or major vision change
- Sudden hearing loss, ringing in the ears, or vertigo
- Erection lasting longer than 4 hours
- Severe allergic reaction with swelling, rash, or breathing difficulty
- Symptoms of heart attack or stroke, such as chest pressure, one-sided weakness, trouble speaking, or severe shortness of breath
Warnings and Precautions
Pregnancy warning: Fildena 150 is intended for erectile dysfunction in adult men. It is not indicated for use in women, pregnancy, breastfeeding, or children. Alcohol interaction: Alcohol may reduce erectile response and increase dizziness or blood pressure-related symptoms. Heavy alcohol intake should be avoided. Long-term use risks: Repeated use without medical supervision may delay diagnosis of heart disease, diabetes, high blood pressure, low testosterone, depression, anxiety, or medication-related sexual dysfunction. Special population caution: Older adults and people with liver impairment, severe kidney impairment, cardiovascular disease, bleeding disorders, stomach ulcers, penile anatomical conditions, or a history of prolonged erection need careful medical evaluation. Canadian sildenafil information notes that age 65 or older, hepatic impairment, severe renal impairment, and CYP3A4 inhibitors can increase sildenafil exposure.Drug Interactions
Sildenafil may interact with:- Nitrates used for chest pain
- Riociguat
- Alpha-blockers such as doxazosin or tamsulosin
- Blood pressure medicines
- Other PDE5 inhibitors such as tadalafil, vardenafil, or avanafil
- HIV medicines such as ritonavir or saquinavir
- Antifungals such as ketoconazole or itraconazole
- Antibiotics such as erythromycin or rifampin
- Cimetidine
- Grapefruit juice
- High-fat meals, which may delay onset
- Unregulated sexual enhancement supplements
Storage Instructions
Store tablets at room temperature, away from heat, moisture, and direct sunlight. Keep the product in its original packaging and away from children. Do not use tablets after the expiry date or if packaging appears damaged, relabelled, misspelled, or altered. For Canadian safety, verify that the medicine is supplied by a licensed pharmacy and check whether the product has appropriate Health Canada authorization, such as a valid DIN where applicable. Health Canada warns that unauthorized sexual enhancement products may pose serious health risks.
Clinical Notes
Sildenafil is clinically relevant because erectile dysfunction can be an early marker of vascular disease, diabetes, hypertension, medication effects, psychological stress, or hormonal imbalance. Doctors may prescribe sildenafil after confirming that sexual activity is medically safe and that no dangerous drug interactions are present.
For Fildena 150, the clinical concern is the higher-than-standard sildenafil strength. A prescriber may prefer an authorized sildenafil product with a dose that matches Canadian product monograph guidance.
Frequently Asked Questions
How long does Fildena 150 take to work?
Sildenafil is commonly taken 30 to 60 minutes before sexual activity, although timing can vary. A high-fat meal may delay the effect.
Is Fildena 150 safe for long-term use?
Long-term use should be monitored by a healthcare professional. Erectile dysfunction may be linked to underlying cardiovascular or metabolic disease.
Can I stop taking it suddenly?
For erectile dysfunction, sildenafil is usually taken only when needed, so stopping typically does not require tapering.
Is Fildena 150 safe during pregnancy?
No. This product is not indicated for women, pregnancy, breastfeeding, or children.
What happens if I miss a dose?
When used as needed, there is usually no missed-dose schedule. Do not take extra tablets to make up for a missed dose.
Can I take it with alcohol?
Alcohol may increase dizziness and reduce erectile response. Heavy alcohol use should be avoided.
Is 150 mg sildenafil a standard dose in Canada?
No. Canadian sildenafil product information commonly lists 100 mg as the maximum recommended dose for erectile dysfunction. A 150 mg product should not be used unless a healthcare professional has specifically evaluated the risk.
Disclaimer
This content is for informational purposes only and does not replace professional medical advice. Always consult a healthcare professional before using any medication.
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