Viagra® Tablets for Erectile Dysfunction

Sildenafil is a prescription medicine for erectile dysfunction. It helps increase blood flow to the penis during sexual stimulation. Available with US shipping from Canada, this page explains how it works, who it’s for, and what to know about costs without insurance.

What Viagra Is and How It Works

Viagra® is the reference brand for sildenafil, a phosphodiesterase type 5 (PDE5) inhibitor. This class of therapy helps relax smooth muscle in penile blood vessels. When you are sexually aroused, that relaxation can improve blood flow and support erections. The medicine does not cause arousal and is taken before anticipated sexual activity. Border Free Health connects U.S. patients with licensed Canadian partner pharmacies; prescriptions are verified with prescribers before dispensing.

The treatment starts working after absorption, then is metabolized mainly in the liver. Food, especially high-fat meals, can delay onset. Alcohol can worsen side effects like dizziness. For a deeper comparison with a related option, see Sildenafil Vs Tadalafil.

Who It’s For

Adults with erectile dysfunction who are appropriate candidates may use sildenafil tablets. People taking nitrates or certain blood pressure medicines should avoid it due to the risk of a serious drop in blood pressure. Those with recent heart attack, unstable angina, or uncontrolled arrhythmias should review risks with a healthcare professional before use. You can explore our Erectile Dysfunction category to learn more about the condition.

Dosage and Usage

Follow your prescriber’s instructions on timing and dose. A common approach is one tablet as needed before sexual activity, not more than once daily. Taking the medicine on an empty stomach can help a faster onset. Do not split, crush, or combine doses unless your prescriber directs it. Some adults may begin at lower strengths based on age, other medicines, or tolerability.

If your clinician prescribes sildenafil 50 mg tablets, take them only as directed. Avoid grapefruit or grapefruit juice, which can raise blood levels. If you experience chest pain, vision changes, or prolonged erection, seek urgent care and do not take another dose.

Strengths and Forms

This therapy is available as oral tablets. Commonly published strengths include 25 mg, 50 mg, and 100 mg options for erectile dysfunction. There are also 20 mg tablets for a different indication under other brand names. Availability can vary by manufacturer and partner pharmacy. If a specific strength is out of stock, your prescriber may consider a different tablet strength to meet your needs.

Many adults discuss sildenafil 100mg tablets with their clinician when evaluating response. Use only the strength your prescriber recommends. Do not adjust your dose on your own.

Missed Dose and Timing

This medicine is taken as needed for sexual activity. If you planned to take a dose and forgot, you can take it before activity as instructed. Do not take extra tablets to make up for a missed opportunity. Space doses at least a full day apart unless your prescriber gives different guidance.

Storage and Travel Basics

Store tablets at room temperature, away from excess moisture and light. Keep them in the original packaging until use to protect from humidity. Place out of reach of children and pets. When traveling, carry the prescription label with you and pack the tablets in a secure carry-on. If your trip crosses time zones, focus on planned timing before sexual activity rather than a fixed clock time. For sensitive items across our catalog, temperature-controlled handling when required is observed.

Benefits

This PDE5 inhibitor can help improve erectile function when combined with sexual stimulation. Many people value on-demand use and the ability to plan around intimacy. The treatment offers multiple strengths, allowing prescribers to tailor dosing for tolerability. Some individuals considering non-systemic options may also review Eroxon Gel with their clinician for situational support.

Some patients prefer traditional tablets, while others appreciate flexibility in timing. The choice depends on medical history, current medicines, and personal goals. Discuss what matters most to you during your consultation.

People sometimes ask about sildenafil citrate tablets versus other PDE5 inhibitors. Your clinician can help weigh onset, duration, and interaction profiles across options.

Side Effects and Safety

• Headache or flushing
• Indigestion or upset stomach
• Nasal congestion
• Dizziness or lightheadedness
• Color vision changes or blurred vision

Serious effects are rare but can include chest pain, sudden vision or hearing loss, fainting, or an erection lasting more than four hours. Seek immediate medical help if these occur. People with heart disease should review exertion risks related to sexual activity. Learn more about labeled risks in our overview: Viagra Uses.

Drug Interactions and Cautions

Do not take nitrates (for chest pain) or guanylate cyclase stimulators with this therapy. Combining these can cause severe hypotension. Use caution with alpha-blockers; prescribers may space dosing to lower risk. Strong CYP3A4 inhibitors or inducers can change drug levels, so check all medicines and supplements with your healthcare professional. Limit alcohol to reduce dizziness. If you have severe liver or kidney disease, ask your prescriber about suitability.

What to Expect Over Time

You may notice effects with the first on-demand dose when sexually stimulated. Some people need several attempts to find the best timing relative to meals and activity. If results are not satisfactory, your prescriber may reassess timing, strength, or alternatives. Keep track of when you take each dose, what you ate, and your experience. Sharing that information can help guide future decisions.

Compare With Alternatives

Many adults compare the reference brand Viagra with other PDE5 inhibitors such as Vardenafil. Differences may include onset, duration, and interaction profiles. If you have persistent side effects or limited benefit, ask your prescriber whether a different PDE5 inhibitor or a non-drug option could be appropriate.

Pricing and Access

Canadian pharmacy partners often offer competitive options. Your final sildenafil price can vary by strength, manufacturer, and quantity. We display transparent pricing on the product page so you can compare fills. Checkout is encrypted to protect your information. We provide clear instructions on how to upload your prescription.

We maintain Canadian pricing with fulfillment that Ships from Canada to US. If you have questions about coverage, your prescriber or insurer can explain formularies and prior authorization policies. Cash-pay users can review package sizes to find a practical refill rhythm.

Availability and Substitutions

Supply can vary by strength and manufacturer. If the exact product is temporarily unavailable, your prescriber might consider a therapeutically equivalent substitution. We will contact you if your order requires a change for your approval. You can also browse related items in Mens Health for broader context.

Patient Suitability and Cost-Saving Tips

Good candidates typically want on-demand help with erections and can safely take a PDE5 inhibitor. People with contraindicated medicines or certain cardiovascular conditions may need alternatives. Discuss sleep apnea, vision disorders, or significant blood pressure changes with your clinician before starting.

To manage costs, consider multi-month quantities if appropriate for your situation. Use refill reminders so you do not run out before trips or important events. Review packaging sizes to balance convenience and value. For more options across this class, see ED Treatments.

Questions to Ask Your Clinician

• Which starting strength fits my health and other medicines
• How should I plan dosing relative to meals
• What side effects mean I should stop and call you
• Could an alternative PDE5 inhibitor be safer for me
• Are any of my current prescriptions or supplements interacting
• What follow-up plan should I use if results are limited

Authoritative Sources

• FDA DailyMed: Sildenafil
• Pfizer: Viagra Product Page
• Health Canada Drug Product Database

Ready to take the next step? You can buy sildenafil online with prompt, express shipping and US delivery from Canada. This content is informational and not a substitute for professional medical advice.