Best for. Most will prescribe the 50mg tablet at first to patients who are just starting to take Viagra. This applies, for example, when you want to take Tadalafil brand name Cialis instead of Viagra. It will be available in pharmacy and online from Boots exclusively for a two-week period, prior to being made available from wider pharmacies. Some of the most common side effects when taking Viagra Connect include: Headaches.The Savings Offer and Program expire on 12/31/ For further information, call , visit test1.ru, or write: Viatris Inc., P.O. Box , Mission, KS . 1 day ago · Currently, there are no over the counter alternatives to Viagra available. Viagra (sildenafil) is a prescription medication, meaning it’s not available over the counter . The Viagra Connect Checklist includes an assessment of the man’s overall fitness for sex and gives guidance on whether Viagra Connect is the right treatment option. It’s .