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Doctor insights on: Neosynephrine Side Effects

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If I overdose on neo-synephrine, what will happen?

If I overdose on neo-synephrine, what will happen?

Heart effects: Symptoms of Neo-Synephrine overdose include rapid heart rate, irregular heart rate, palpitations, anxiety, hallucinations, abdominal cramps, diarrhea, vomiting & sweating. Your nose may sting a lot. Not everyone gets all of these symptoms. Neo-synephrine is a highly addictive drug & should not be used routinely. There are better medications for treating your chronic symptoms. See your doctor. ...Read more

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Dr. Jeffrey Stevens
13 doctors shared insights

Neosynephrine (Definition)

Neo-Synephrine is a decongestant which is a kind of antihistamine type drug (common ...Read more


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Does anyone know what the drug neo-synephrine does?

Does anyone know what the drug neo-synephrine does?

Neo-synehrine: Neosynephrine (phenylephrine) constricts blood vessels. Given intravenously, it raises blood pressure and is used to treat low blood pressure or shock. Given topically or in small doses orally, it constricts the vessels in the nose (nasal mucosa) which opens breathing passages. ...Read more

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What happens if a dose of neo-synephrine is missed?

What happens if a dose of neo-synephrine is missed?

Neo-synephrine: All topical nasal decongestants (afrin, Vicks inhaler, 4-way, neosynephrine etc.) if used daily can result in a form of addiction called rhinitis medicomentosa. This problem develops when the nasal tissues develop a resistance to the effects of the spray and more frequent use is needed to keep the nose open. Avoid using these products for more than 2 days without time away from them (3-4 days). ...Read more

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Does neo synephrine help you get over a cold faster?

Does neo synephrine help you get over a cold faster?

Quick answer: No. It relieves symptoms. Unfortuantely continued use or use in the wrong person (i.e. With high blood pressure) could cause lots of other problems. ...Read more

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Does synephrine have the same decongestant effect as neo-synephrine?

Does synephrine have the same decongestant effect as neo-synephrine?

No: Synephrine is an amphetamine precursor used for weight loss. Neosynephrine (phenylephrine) (phenylehphrine) constricts blood vessels and is used as a decongestant when applied topically to the nosal mucosa or orally in pharmacologic doses ...Read more

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Will neo-synephrine make my nasal congestion worse if I keep using it all week?

Will neo-synephrine make my nasal congestion worse if I keep using it all week?

Yes: The use of this drug which constricts blood vessels may eventually lead to rebound. That is, the blood vessels in the lateral wall of the nose will actually produce more congestion. Neo-synephrine should be used for a maximum of 2-3 days. It is very important to know if the congestion is the result of a viral infection or nasal allergy or more seriously, nasal polyps. Get a diagnosis. ...Read more

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What can help nasal stuffiness related to uri?.Already taking neo-synephrine, but is not helping too much.

What can help nasal stuffiness related to uri?.Already taking neo-synephrine, but is not helping too much.

Mucinex (guaifenesin): Mucinex (guaifenesin) may be better otc choice for stuffiness and to help control postnasal drip. Lasts 12 hours and available in drug store or supermarket. ...Read more

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Side effects of pills?

Too vague: A question. Different pills/meds have different effects as well side effects. ...Read more

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Sustonon, side effects?

Sustonon, side effects?

Sustanon: Sustanon is an anabolic steroid, side effects include breast development, hair loss, acne, depression, weight gain, low sperm count, and headache. There are a whole host of other side effects as well, available from the drug manufacturer. ...Read more