How fast phenylephrine take to work?

Usually, phenylephrine starts working within 15 to 30 minutes. It has been found to act rapidly but the effect varies from person to person. This is because the response to a particular medication varies in every patient.

What will happen if I take phenylephrine while pregnant?

phenylephrine is not recommended in early pregnancy. Safe use of phenylephrine during pregnancy has not been established. Consult your doctor if you have taken this medication while being pregnant.

Phenylephrine

Uses of Phenylephrine

Phenylephrine is commonly used to treat Allergic Conditions, Common Cold And Cough With Fever, Common Cold Symptoms, Common Cold Symptoms With Fever, Nasal Allergy Symptoms, Nasal Congestion Blocked Nose, Piles, Pupil Dilation, Sinusitis, Sneezing And Runny Nose Due To Allergies,

How Phenylephrine Works

Phenylephrine is an alpha-adrenergic receptor agonist which works to stimulate the receptor causing vasoconstriction and also releasing the norepinephrine from its storage sites.

Side Effects of Phenylephrine

Palpitation, Eye irritation, Blurred vision, Nausea, Vomiting, Headache, Tremor, Anxiety, Insomnia, Urinary retention

Information About Phenylephrine

Phenylephrine is a selective alpha-1 adrenoceptor agonist used as a nasal decongestant and mydriatic agent in Singapore. Available as a 10mg oral tablet taken every four hours or as a 2.5%–10% ophthalmic solution for pupil dilation, it is HSA-registered and available on prescription only in Singapore. Unlike pseudoephedrine, oral phenylephrine has very low oral bioavailability due to extensive first-pass metabolism — nasal spray formulations deliver superior decongestant activity at significantly lower systemic exposure. A valid doctor's consultation is required before dispensing. Order Phenylephrine online at DoctorOnCall Singapore with same-day delivery available. Speak to a DoctorOnCall physician today to check if Phenylephrine is right for you.

Phenylephrine is a medication commonly used to relieve nasal congestion associated with colds, allergies, and sinusitis, and may also be used in certain ophthalmic and cardiovascular applications. It works by constricting blood vessels, helping reduce swelling in the nasal passages and improve airflow. Phenylephrine belongs to a class of medications known as sympathomimetic decongestants and vasopressors and is widely used in respiratory, ophthalmic, and acute care. Find affordable Phenylephrine options from trusted brands at DoctorOnCall.

Conclusion

Consult our doctors online for safe and effective use of Phenylephrine tailored to your health needs. Find the best prices for affordable Phenylephrine tablets, syrups, nasal sprays, eye drops, and injections at DoctorOnCall Singapore.

Warnings

Kidney Use With Care

Dosage adjustment may be needed for patient who needs parenteral Phenylephrine and with hypotensive states.

Alcohol Safe

There is no contraindication in alcohol consumption while using Phenylephrine.

Pregnancy Not Safe

There is no animal reproductive studies conducted but due to potential adverse effects of Phenylephrine to the term fetus, it is not advisable to take Phenylephrine during pregnancy.

Driving Not advisable

It is not advisable to drive when under Phenylephrine eye treatment due to its potential side effects such as eye irritation and blurred vision which can affect the ability to concentrate and drive.

Liver Limited Data

There is no dosage adjustment needed for patients with hepatic impairment according to the manufacturer labelling.

Lactation Limited Data

It is not known whether Phenylephrine is excreted into human breastmilk or not. Due to its potential toxicity, Phenylephrine is not advisable to be used during breastfeeding.