Some men feel lightheaded or dizzy. Sleep disruption & vivid dreams are not associated with cialis use. Can cialis affect sleep? Food does not interfere with absorption of tablet or suspension of cialis but of capsule is reduced. But remember that when you use cialis and other topical retinoids, your skin is more susceptible to ultraviolet light. Common side effects of cialis Inhalation Solution (cialis sulfate) include headache, dizziness, spinning sensation, lightheadedness, sleep problems (insomnia), tremor, nervousness, sweating, nausea, vomiting, diarrhea, dry mouth and throat, muscle cramps, and unusual taste in your mouth. Kidney patients should take the recommended daily amount of vitamin C, which is 60 mg, but no more. In addition, it can take 4-6 weeks to reach full effect. How long can you take cialis safely? Other topical treatments for oral herpes are available over-the-counter (OTC), but are not antiviral compounds like cialis and penciclovir. cialis can slightly lower blood pressure. For symptoms related to sleep, appetite, and energy, cialis works fast, and some improvement may be evident within 1-2 weeks of beginning treatment. Ideally these times should be at least 4 hours apart (e.g. 8 am, midday, 4pm and 8pm). cialis is used to treat viral infections. What is Alli? cialis is dispensed in a film-coated tablet. Both intravenous and oral cialis can induce ARF.