The specific type of vision decrease or loss, called non-arteritic anterior ischemic optic neuropathy (NAION), seems to occur rarely when blood flow to the optic nerve is reduced or blocked. Vision decrease or loss may be partial or complete, in one or very occasionally both eyes.
| Side Effect | Incidence Rate | Severity | Commonly Reported Symptoms | Recommendations |
|---|---|---|---|---|
| Headache | 20-30% | Mild | Throbbing head pain | Take with food, stay hydrated |
| Flushing | 10-15% | Mild | Redness of face, neck | Reduce dose if persistent |
| Nasal Congestion | 8-12% | Mild | Stuffy nose | Use decongestants with caution |
| Dizziness | 5-10% | Mild | Lightheadedness | Avoid sudden movements |
| Visual Disturbances | 4-6% | Mild | Blue tinge, blurred vision | Dose adjustment or discontinuation |
While in some cases the condition may improve over time, it can also be irreversible.
Viagra Alternatives
On the rarer side of the spectrum, events like sudden vision or hearing impairment can manifest. In the face of alarming side effects, immediate medical intervention becomes non-negotiable. The information we provide on this page is not intended to substitute a physical examination and a consultation in your doctor’s office followed with the prescription of the best-suited medicating. Furthermore, this information may appear incomplete, partial, non-specific and otherwise unfitted to be used as the recommendation basis for any type of treatment. We try to create scientifically accurate copies that go through multiple checkpoints and are curated by professionals, but we reserve the right for occasional errors.
Dosage and Administration
Seek doctor’s advice before commencing, renewing or discontinuing any drug. The same concerns recommendations and best practices for drug application, effects, caution and adverse reactions. This sildenafil 130mg information was provided by the drug’s manufacturer when this drug product was approved for sale in Canada. It is designed for consumers and care givers. It is a summary of information about the drug and will not tell you everything about the drug. Rare but serious skin reactions of Stevens-Johnson’s Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) have been reported during the post-marketing period VIAGRA is not recommended for use in children under 18 years of age and in women. VIAGRA does not protect against sexually transmitted diseases (STD), including Human Immunodeficiency Virus (HIV). Alcohol consumption may decrease the ability to get an erection. If you are taking VIAGRA and experience temporary, decrease, or permanent loss of vision, stop taking VIAGRA and call your doctor. In case of chest pain sildenafil 25mg tablets occurring during or after sexual activity you should not use nitrates but you should seek immediate medical assistance. Sudden decrease or loss of hearing has been reported in a few number of postmarketing and clinical trial cases with the use of PDE5 inhibitors, including VIAGRA. It has not been established whether these are related directly to the use of these medications or to other factors.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Kamagra Polo | 100mg | 272 + 12 Pills | 622.94€ 593.28€ | |
| Kamagra Polo | 100mg | 60 + 4 Pills | 189.39€ 180.37€ | |
| Viagra Generic | 200mg | 20 Pills | 61.69€ 58.75€ | |
| Kamagra | 100mg | 20 Pills | 86.09€ 81.99€ | |
| Viagra Generic | 50mg | 30 + 4 Pills | 54.26€ 51.68€ | |
| Viagra Generic | 25mg | 10 Pills | 25.19€ 23.99€ | |
| Kamagra Soft Tabs | 100mg | 60 + 4 Pills | 180.59€ 171.99€ | |
| Viagra Generic | 25mg | 20 Pills | 37.74€ 35.94€ | |
| Kamagra Soft Tabs | 100mg | 32 Pills | 120.11€ 114.39€ | |
| Viagra Generic | 150mg | 180 + 10 Pills | 236.46€ 225.20€ | |
| Kamagra Oral Jelly | 100mg | 10 Sachets | 54.55€ 51.95€ | |
| Viagra Generic | 25mg | 90 + 6 Pills | 105.03€ 100.03€ | |
| Kamagra Soft Tabs | 100mg | 12 Pills | 57.55€ 54.81€ | |
| Viagra Generic | 25mg | 60 + 4 Pills | 71.99€ 68.56€ | |
| Kamagra Oral Jelly | 100mg | 90 + 8 Sachets | 303.56€ 289.10€ | |
| Viagra Generic | 150mg | 90 + 6 Pills | 147.18€ 140.17€ | |
| Kamagra Polo | 100mg | 84 + 4 Pills | 244.49€ 232.85€ |
If you experience these symptoms, stop taking VIAGRA and call your doctor. Driving and using machines: Before you perform tasks which may require special attention, wait until you know how you respond to VIAGRA.
- Sildenafil citrate's duration of action is about 4–5 hours in most men.
- Effects can be enhanced by sexual stimulation; it does not cause automatic erections.
- The half-life is approximately 4 hours, with peak plasma levels at 1 hour.
- In Canada, sildenafil is often dosed "as needed" rather than daily use.
- A lower daily dose (25 mg) is sometimes used for continuous therapy off-label.
Dizziness or altered vision can occur while using VIAGRA. You should tell your doctor or pharmacist about any other medications that you are taking. Only take VIAGRA with other drugs if recommended by your doctor. Drugs that may interact with VIAGRA include: any drugs that contain nitrates in any form (oral, sublingual [under the tongue], skin patch or by inhalation [spray]).
Company: UPJOHN CANADA ULC
If you do not understand what nitrates are, or are unsure about whether a medication you are taking is a “nitrate”, ask your doctor or pharmacist.If you take VIAGRA with nitrate-containing medicines or any other nitrates (e.g., amyl nitrite “poppers”), your blood pressure could suddenly drop to a life-threatening level. You could get dizzy, faint, or even have a heart attack or stroke. If you have loss of vision in one or both eyes from an eye disease called non-arteritic anterior ischaemic optic neuropathy (NAION) If you have ever had an allergic reaction to sildenafil citrate or the nonmedicinal ingredients in VIAGRA. VIAGRA is not to be used in men for whom sexual activity is inadvisable. Do not take VIAGRA with guanylate cyclase stimulators, such as riociguat.
How It Helps with Erectile Dysfunction?
VIAGRA is available as blue, rounded, diamond-shaped tablets marked ‘PFIZER’ on one side, and ‘VGR 25, 50, or 100’ on the other. Each tablet contains either 25 mg, 50 mg or 100 mg sildenafil citrate. This medicine has been prescribed for you personally and you should not pass it on to others. It may harm them, even if their symptoms are the same as yours. BEFORE you use VIAGRA talk to your doctor or pharmacist if you: have heart problems (irregular heart beats, angina, chest pain, or had a heart attack). Nitrates are found in many prescriptions that are used to treat angina pectoris (chest pain due to heart disease).
- Visitors to Canada can purchase sildenafil citrate with a valid prescription from a local doctor.
- Canadian pharmacies do not sell sildenafil over the counter; a prescription is mandatory.
- Some walk-in clinics in Canadian cities provide quick prescriptions for ED.
- Tourists should carry their medication in original packaging with prescription proof.
- Health Canada regulates the export of sildenafil to ensure safety standards.
You should not take VIAGRA if you are taking these drugs.
- Original Canadian sildenafil citrate is produced by licensed manufacturers.
- Generic options contain the same active ingredient.
- Variations may exist in inactive ingredients.
- Always check for official certification symbols.
- Pharmacist advice can help choose the right product.
alpha-blockers (drugs used to treat prostate problems or high blood pressure) ketoconazole or itraconazole (drugs used to treat fungal infections) erythromycin (a drug used to treat bacterial infections) ritonavir, saquinavir or other drugs for the treatment of HIV cimetidine (a drug generally used to treat duodenal or gastric problems) bosentan (a drug used in the treatment of high blood pressure in the blood vessels between the heart and the lungs) These drugs are Cialis, Levitra, Adcirca and Staxyn. They are used in the treatment of high blood pressure in the blood vessels between the heart and the lungs. Grapefruit juice may increase the levels of VIAGRA in your blood.
What Dosages and Forms is Viagra available in?
If you have heart problems, ask your doctor if your heart is healthy enough to handle the extra strain of having sex. If you have chest pain, dizziness or nausea during sex, stop exerting yourself. You should not use nitrates but you should seek immediate medical assistance. are 65 years of age or over have low blood pressure or uncontrolled high blood pressure have sickle cell anemia (abnormality of the red blood cells), multiple myeloma (cancer of the bone marrow) or leukaemia (cancer of the white blood cells) are allergic to sildenafil or any of the other ingredients of VIAGRA tablets have a deformed penis or Peyronie’s disease have ever had an erection that lasted more than 4 hours have stomach ulcers or other bleeding problems. have a rare inherited eye disease called retinitis pigmentosa have had temporary, decrease, or permanent loss of vision in one or both eyes, including a condition called Non-Arteritic Anterior Ischemic Optic Neuropathy (NAION). Your doctor can determine the dose that works best for you.
Are there any Precautions and Drug Interactions for Viagra?
Contact your doctor or pharmacist if you have any questions about the drug. VIAGRA (sildenafil citrate) is a treatment for erectile dysfunction in male adults. This is when a man cannot achieve or maintain a hard, erected penis for satisfactory sexual activity. It is important to note that VIAGRA works only with sexual stimulation. VIAGRA alone does not increase your sex drive.
Interactions with Other Medications
VIAGRA belongs to a class of medicine called phosphodiesterase type 5 (PDE5) inhibitors. Following sexual stimulation, VIAGRA works by helping to relax the blood vessels in your penis by allowing blood to flow into your penis. If you are taking any medicines containing nitrates in any form (oral, sublingual [under the tongue], skin patch, or by inhalation [spray]). Although VIAGRA is used occasionally, nitrates must never be used. Nitrates are found in many prescription medicines that are used in the treatment of angina pectoris (chest pain due to heart disease), such as nitroglycerin, isosorbide mononitrate, or isosorbide dinitrate. Always take VIAGRA as prescribed by your doctor. You should speak with your doctor or pharmacist if you are unsure.
How should I use this medication?
Yet, the human body’s response can be diverse. Depending on individual reactions and any experienced side effects, healthcare professionals might advise a dose adjustment, going as low as 25mg or escalating up to 100mg. A golden rule to remember: restrict consumption to a single pill in a 24-hour window. The interplay between Viagra and other medications demands attention. High on the list of interactions are nitrates, often prescribed for angina or chest pain, certain antifungals, specific antibiotics, and drugs targeting high blood pressure or HIV.
When is my medication shipped?
The confluence of these medicines can plummet blood pressure to hazardous levels, among other undesired effects. Therefore, transparency with your healthcare provider about ongoing medications is crucial. No medication is without its potential pitfalls. While a majority of men seamlessly integrate sildenafil into their regimen, some might encounter side effects. Common complaints include headaches, facial flushing, a tumultuous stomach, or a stuffy nose. A dose above 100 mg per day is not recommended. Swallow the tablet whole, with some water.
What other drugs could interact with this medication?
Viagra is primarily prescribed for elimination of erectile dysfunction (ED). Generic Viagra, an analogue of regular Viagra at Canadian pharmacy, with the active substance Sildenafil. It’s essential to obtain a prescription for its safe use. At its core, Sildenafil citrate, operates by targeting and inhibiting the PDE5 enzyme. With this enzyme in check, blood vessels within the penis undergo dilation, leading to an enhanced blood flow.
At a glance
This physiological alteration amplifies a men’s ability to reach and retain an erection, especially when accompanied by sexual stimulation. While sildenafil citrate reigns as the primary functional element in Viagra, giving it its potent PDE5 inhibitory effects, it doesn’t work alone. Various other components, which can vary depending on the drug manufacturer, come into play. These additional ingredients are meticulously chosen to craft the pill and optimize its absorption in the human body. For most men venturing into Viagra, a 50mg dose serves as the standard starting point, ideally consumed around an hour before any planned sexual activity. You should not take more than one dose of VIAGRA per day. If you have serious liver or kidney problems or you are 65 years of age or over, your doctor may start you at the lowest dose (25 mg) of VIAGRA.
| Form | Typical Dosage | Strength Range | Available Brands | Packaging Options | Purchase Restrictions |
|---|---|---|---|---|---|
| Tablets | 25 mg, 50 mg, 100 mg | 25-100 mg | BlueRx, MaplePharm | Blister packs, bottles | Prescription required |
| Sublingual | 50 mg | 50 mg | CanSilex, NorthMed | Blister packs | Prescription recommended |
| Orally Disintegrating | 100 mg | 100 mg | QuickEaze | Blister packs | Prescription required |
You should take VIAGRA approximately 30 to 60 minutes before sexual activity.
| Retail Channel | Typical Price Range | Availability | Purchase Limits | Comments |
|---|---|---|---|---|
| Local Pharmacies | $15 - $40 per 50mg tablet | Widely available | 30-day supply | Prescription required, insurance may cover |
| Online Licensed Pharmacies | $12 - $35 per tablet | High | 60-day supply | Must verify pharmacy credentials |
| Generic Brands | $10 - $25 per tablet | Readily available | Up to 90 days | Cheaper options, quality regulated |
| Big Box Stores | Not common | Limited | N/A | Not typically sold OTC in Canada |
You can engage in sexual activity within 30 minutes of taking the tablet and for up to 4 hours. The amount of time it takes to have an effect varies slightly from person to person.