Cialis Tablets (Pack of 6) Price in Pakistan Cialis 20mg is available in Pakistan ( UK Cialis) as almond-shaped pills. Each tablet contains 2.5, 5, 10, or 20 mg of tadalafil and the following inactive ingredients: croscarmellose sodium, hydroxypropyl cellulose, hypromellose, iron oxide, lactose monohydrate, magnesium stearate, microcrystalline cellulose, sodium lauryl sulfate, talc, titanium dioxide, and triacetin. headache, indigestion, back pain, muscle aches, flushing, and stuffy or runny nose. These side effects usually go away after a few hours. Men who get back pain and muscle aches usually get it 12 to 24 hours after taking CIALIS. An erection that won’t go away: If you get an erection lasting more than 4 hours, seek immediate medical help to avoid long-term injury. In rare instances, men taking prescription ED tablets, including CIALIS, reported the following: a sudden decrease or loss of vision. It is uncertain whether PDE5 inhibitors directly cause vision loss. a sudden decrease or loss of hearing (sometimes with ringing in the ears and dizziness). It’s not possible to determine if these events are related directly to the ED tablets or to other factors. If you have a sudden decrease or loss of vision or hearing, stop taking any ED tablet, including CIALIS, and call a healthcare provider right away.