 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  this drug include: aminophylline, certain drugs used to treat chest pain/angina or high blood pressure (nitrates such as nitroglycerin, isosorbide), dipyridamole, drugs to treat erectile dysfunction-ED/pulmonary hypertension (such as sildenafil, tadalafil, vardenafil), recreational drugs called "poppers" containing amyl or butyl nitrite, theophylline, vericiguat. Cigarette smoking decreases blood levels of this medication. Tell your doctor if you smoke or if you have recently stopped smoking. Does Riociguat Tablet interact with other drugs you are taking? Enter your medication into the WebMD interaction checker Check InteractionThe overdose of Riociguat Oral: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.  Notes Do not share this medication with others. Lab and/or medical tests (such as blood pressure, pregnancy tests) must be done while you </s>