Do not break or split a Cialis tablet. What should I do if I missed a dose of Cialis Tadalafil? Physicians should discuss with patients the potential for CIALIS to augment the blood-pressure-lowering effect of alpha-blockers and antihypertensive medications. Cialis should not be used by patients taking nitrates such as nitroglycerin tablets or patches because the combination of these with Cialis could significantly lower blood pressure and lead to fainting or even death in some men. When taking Adcirca or Alyq, you may need 2 tablets for a full dose. You can report an adverse event either online, by regular mail or by fax, using the contact information at the bottom of this page. Avoid drinking alcohol.Tadalafil, or generic Cialis, is most commonly used to treat erectile dysfunction (ED). However, it’s also used to treat benign prostatic hyperplasia (BPH) and pulmonary arterial hypertension. AdGet a Prescription for ED treatment, discreetly deliverED to your test1.ruive Offers · How It Works · Get More Info.  · flushing (warmth, redness, or tingly feeling); nausea, upset stomach; runny or stuffy nose; or. muscle pain, back pain, pain in your arms, legs, or back. This is not a complete list of side.