Choosing the right erectile dysfunction (ED) medication can feel confusing. Each drug works similarly but differs in how fast it starts, how long it lasts, and what side effects you might get. Here is a simple comparison to help you decide and buy safely.
Sildenafil (Viagra) usually starts working in 30 to 60 minutes and lasts around 4 to 6 hours. It works well before sex, but fatty meals can slow it down.
Tadalafil (Cialis) can begin in 30 minutes when taken as a higher dose, but often it takes 1 to 2 hours for full effect. Its big advantage is long duration: up to 36 hours, which gives more spontaneity. Low daily dosing is another option for frequent activity.
Vardenafil (Levitra) has a similar profile to sildenafil, often starting in 30 to 60 minutes and lasting 5 to 8 hours. Some men find it works a bit better for certain types of erectile issues.
Avanafil (Stendra) is the fastest of the group, starting in as little as 15 minutes for some men, and lasting about 6 to 12 hours. It is often gentler on side effects and works well when you need a quick option.
Common side effects include headache, flushing, nasal congestion, upset stomach, and back pain. Serious problems are rare but possible. Never take PDE5 inhibitors with nitrates (used for chest pain) or certain uncontrolled blood pressure drugs. Mixing with heavy alcohol or recreational drugs can also be risky.
Pick based on how often you have sex, how much spontaneity you want, and how your body reacts. If you want a long window, tadalafil is a good choice. If you need something fast, avanafil may suit you. If cost is a factor, sildenafil is usually cheapest and widely available.
Always get a prescription from a healthcare provider. Use licensed pharmacies that require a prescription and show contact details. Watch for unusually low prices, poor website design, or no pharmacist contact—those are warning signs. Reliable Canadian pharmacies typically list licensing and shipping info clearly.
Talk to your doctor about heart health, other meds, and natural supplements. Don’t combine PDE5 inhibitors with nitrate medicines or certain alpha blockers without medical advice. If you have diabetes, high blood pressure, or prostate issues, mention those conditions when choosing a drug.
When ordering, check shipping times, return policies, and generic options. Generics like sildenafil and tadalafil offer big savings but should still come from reputable sources. Keep records of prescriptions and receipts in case you need to track a batch or report an issue.
If you want a quick comparison chart or help finding a licensed Canadian pharmacy, our guides and reviews can help. Talk to your doctor first, then shop smart for safety and value.
Seek medical help if you have sudden vision or hearing loss, chest pain, or an erection lasting more than four hours. These are rare but need prompt treatment. Carry ID information.
