Push the plunger of the syringe, then insert the tip into the bottle while holding the bottle upright on a flat surface. Trimazosin Other Interactions Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Some people may also have ringing in their ears tinnitus or dizziness. Angina severe chest pain , unstable or Arrhythmia irregular heartbeat, within the last 6 months or Blood vessel problems eg, aortic stenosis, idiopathic subaortic stenosis or Heart attack within the last 6 months or Heart failure or Hypertension high blood pressure or Hypotension low blood pressure or Retinal disorders eye problem or Retinitis pigmentosa an inherited eye disorder or Stroke within the last 6 months —Should not be used in patients with these conditions. These medicines prevent an enzyme called phosphodiesterase type-5 from working too quickly. Such patients must not apply any out-of-pocket expenses incurred using this Savings Offer toward any government insurance benefit out-of-pocket spending calculations, such as Medicare Part D true out-of-pocket TrOOP costs You are responsible for reporting use of this Savings Offer to any private insurer, health plan, or other third party who pays for or reimburses any part of the prescription filled using this Savings Offer, as may be required.Ways to save on Viagra. Save at least $5 per month on your prescription. Save at least $5 per month on your prescription. Call to get more information on how they can financially assist you with your prescription. You may be able to lower your total cost by filling a greater quantity at one time. Viagra should be taken at 25 mg per 48 hours in order to be used safely along with this drug, since ritonavir increases the concentration of Viagra. CYP3A4 inhibitors. Viagra should be taken at AdSave on Health Products. Free 2-Day Shipping with Amazon Prime.1M+ visitors in the past month.