Doxylamine (NA)

Doxylamine (NA) is used to treat and prevent nausea, vomiting, and vertigo associated with morning sickness. It is also used to treat various allergic conditions as provides relief from runny nose, sneezing, itching, and watery eyes.

Doxylamine (NA) should be taken on an empty stomach, but take it at the same time every day to get the most benefit. It should be taken as your doctor's advice. The dose and how often you take it depends on what you are taking it for. Your doctor will decide how much you need to improve your symptoms. You should take this medicine for as long as it is prescribed for you. In case, you have missed any doses then it is better to take the next dose as soon as you remember it. However, you should never take a double dose.

Dizziness or drowsiness is the most common side effect of this medicine. Avoid driving or attention-seeking activity. If these bother you or appear serious, let your doctor know. There may be ways of reducing or preventing them. In some cases, it may cause dryness of the mouth, so it is advised to drink more water, always carry sugar candy or maintain oral hygiene.

Before taking this medicine, let your doctor know if you have glaucoma or have any gastro-related issues or have asthma. Inform your doctor if you are pregnant, or breastfeeding. Your doctor should also know about all other medicines you are taking as many of these may make this medicine less effective or change the way it works. Generally, it is advised to avoid alcohol while on treatment.

• Morning sickness
• Allergic conditions

Morning sickness
Doxylamine (NA) blocks the action of chemicals in the body that can make you feel or be sick in the morning time during pregnancy. This medicine helps you cope up with nausea or vomiting that occurs due to hormonal changes during pregnancy and helps you complete the term without much discomfort. It is a very safe and effective medicine.

Allergic conditions
Doxylamine (NA) is used to treat many different inflammatory and allergic conditions. It works by lowering your immune system’s response to these conditions and prevents the release of substances in the body that cause inflammation. It helps relieve symptoms such as swelling, pain, itching, and other allergic-type reactions. If you are not sure why you are being given this medicine, ask your doctor.
This medicine is given orally (by mouth). You should always take it as it has been prescribed for you. Do not stop taking it without your doctor’s advice. This can cause unpleasant withdrawal symptoms. Because this medicine weakens your immune system, you should avoid being near people who are ill or have infections.

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Sifdox

• Drowsiness
• Dryness in mouth
• Tiredness
• Lethargy
• Nasal congestion (stuffy nose)

Take this medicine in the dose and duration as advised by your doctor. Doxylamine (NA) is to be taken empty stomach.

Doxylamine (NA) is an antihistamine medication. It blocks the action of certain chemical messengers that are responsible for inflammation, congestion, itching, and other allergic reactions. Doxylamine (NA) also acts on neurotransmitters in the brain that trigger feelings of nausea or disrupt other bodily processes that cause vomiting.

• Avoid driving or operating dangerous machinery as it may decrease alertness.
• Avoid consuming alcohol when taking the Doxylamine (NA), as it may cause excessive sleepiness or drowsiness.

Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 434-37.

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