Yes, taking the 20mg Cialis pill should work the first time.
Cialis can help achieve an erection when sexual stimulation occurs. An erection will not occur just by taking a pill. It's difficult to say exactly how soon it'll start working but if all goes well it should work in about an hour.
- Cialis Information for Consumers
- Cialis Information for Healthcare Professionals (includes dosage details)
- Side Effects of Cialis (detailed)
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