Phenylephrine may also be used for purposes not listed in this medication guide. Do not use phenylephrine if you have used an MAO inhibitor in the past 14 days. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, rasagiline, selegiline, tranylcypromine, and others. Hydroxychloroquine what to assess before taking it Hydroxychloroquine sulfate dosage The Risk of Retinal Toxicity with Plaquenil. Recent findings suggest that Plaquenil toxicity can develop among patients that are taking the drug at a daily dose lower than the suggested “safe” dose and/or have been on Plaquenil for shorter than five years. Unfortunately, cessation of Plaquenil intake may not be a remedy since not. Feb 16, 2018 Plaquenil is considered a mild medicine for RA and is often used as a first-choice medicine. The main problem with plaquenil is that it can affect your vision. So everybody on plaquenil must do at least a field vision test once a year, and is recommended to do additional tests like OCT test. You can read more here Does Plaquenil Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in. Ask a doctor or pharmacist if this medicine is safe to use if you have: Ask a doctor before using this medicine if you are pregnant or breast-feeding. You should not use phenylephrine if you are allergic to it. Can you take phenylephrine with plaquenil The Risk of Retinal Toxicity with Plaquenil, Experience with Plaquenil? Cheap aralen prescribingPlaquenil long term side effectsOk to take hydroxychloroquine and meloxicam togetherPlaquenil and macular pucker Serious, life-threatening side effects can occur if you take phenylephrine before these other drugs have cleared from your body. If you have certain conditions, you may need a dose adjustment or special tests to safely use this medication. Before you take phenylephrine, tell your doctor if you are allergic to any decongestants, or if you have Phenylephrine - CardioSmart. Plaquenil Oral Interactions with Other Medication. PLAQUENIL To Take or Not To Take?" Lupus Community.. Hydrocodone; Phenylephrine Moderate Concomitant use of hydrocodone with hydroxychloroquine may increase hydrocodone plasma concentrations and prolong opioid adverse reactions, including hypotension, respiratory depression, profound sedation, coma, and death. It is recommended to avoid this combination when hydrocodone is being used for cough. Before taking this medicine. You should not use guaifenesin and phenylephrine if you are allergic to it. Do not use guaifenesin and phenylephrine if you have taken an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. If you don't have to, don't stop your plaquenil. I stopped taking the plaquenil the beginning of December. It doesn't agree with my stomach I take it with meals too. And since I hadn't had a miraculous recovery the 6 months I'd been on it, I didn't think there was any harm in stopping it.