How Effective Is Cialis? You’ll also need to fill out a medical questionnaire with answers about your medical history, current medications, and lifestyle habits. Read our editorial process. The drug is approved for use in adults. Never purchase ED medications from a site or service that doesn’t require a prescription and medical documentation. Finally, we checked customer reviews to better understand user experiences with each platform. Levitra vardenafil : This medication is taken one hour before sex and can last up to 24 hours.This is a generic drug. The average cost for 30 Tablet(s), 5mg each of the generic (tadalafil) is $ You can buy tadalafil at the discounted price of $ by using the MDRx coupon. Common tadalafil side effects may include: headache; flushing (warmth, redness, or tingly feeling); nausea, upset stomach; stuffy nose; or. muscle pain, back pain, pain in your arms, legs, or back. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. Sesame Best for Generic Pills: Consultation prices vary based on provider; $5 for generic prescriptions: Yes: Viagra, Cialis, sildenafil, tadalafil: Yes: Lemonaid Best for Cialis: Starting at $2 to $8 per pill: Yes: Sildenafil, tadalafil (as-needed and daily) Yes: Roman Best for Viagra: $8 to $44 per pill for generic; $20 to $90 per pill for.