Brand Name Viagra Cialis Levitra
Active Ingredient Sildenafil Citrate Tadalafil Vardenafil
Dosage Strength 100mg 20mg 20mg
Duration of Action 4 to 6 hours Up to 30 hours Approximately 5 hours
Side Effects Dizziness,f lushing, headache,
heartburn, stuffy nose, upset
Headache, facial flushing, indigestion, back pain, nasal congestion muscle pain, pain in arms or legs. Dizziness, flushing, headache, heartburn, nausea, stuffy or runny nose, upset stomach
Available as Tablets, oral jellies and soft tabs Tablets and soft tabs Tablets
Generic Presentations Generic for Viagra, Kamagra, Kamagra Oral Jelly Caverta, Silagra Edegra, Penegra, Zenegra Generic for Cialis, Cialis Soft Tabs Generic for Levitra

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