Written byDr. Adeline Carol PetersBachelor of Medicine and Bachelor of Surgery (MBBS) — Manipal Academy of Higher Education (MAHE)
Last updated:
Overview
Xepa Cough-En Rx Linctus contains Diphenhydramine hydrochloride and Ammonium chloride and is presented as a healthcare product. It is supplied in a pack size of 120ml.
It is classified as a non-prescription medicine, so no prescription is needed to order it. Under Malaysian rules for medicine information, this page carries product, safety and handling information only.
You can consult a doctor or pharmacist online on DoctorOnCall about this product before or after you order. Every order is checked by a registered pharmacist before it is delivered. Always read the label and the leaflet supplied with the pack.
Directions for Use
Take Xepa Cough-En Rx Linctus by mouth using the measuring cup or spoon provided with the pack, shaking the bottle well before each use, and space doses evenly through the day as stated on the label; because diphenhydramine can cause drowsiness, be mindful of dose timing if you will be driving or operating machinery afterward.
Dosage
Dosing is age-based and should follow the directions printed on the product label or a pharmacist’s advice — adults and older children are generally given a higher dose than younger children, taken several times a day as needed for cough, up to the maximum stated on the packaging. This linctus is not generally recommended for very young children without a doctor’s or pharmacist’s specific advice, and the dose should not be increased beyond the label directions.
Storage Instructions
Store below 30°C in a cool, dry place away from direct sunlight, keep the cap tightly closed between doses, and store out of the sight and reach of children.
Side Effects
Drowsiness or dizziness
Nausea or vomiting
Stomach discomfort
Mild confusion (especially at high doses)
Dry mouth
Contraindications
Known hypersensitivity to diphenhydramine, ammonium chloride, or other ingredients in the linctus
Severe liver or kidney impairment (ammonium chloride is cleared via these organs) — seek medical advice first
Infants and very young children, unless specifically advised by a doctor or pharmacist
Drug / Food Interactions
Alcohol and other sedating medicines — increased drowsiness
Other antihistamine- or diphenhydramine-containing cold, flu, allergy, or sleep products — risk of double-dosing on the same active ingredient
MAOI antidepressants — may intensify anticholinergic and sedative effects
Quick Tips
Check other cold, flu, allergy or sleep products you’re taking to avoid duplicating diphenhydramine
Take care if you need to drive or operate machinery, as it can cause drowsiness
Stay well hydrated to help the expectorant action loosen mucus
Use the measuring cup or spoon provided for an accurate dose
Avoid alcohol while taking this linctus
See a doctor if the cough lasts more than a week, or is accompanied by fever, chest pain, or breathlessness
This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.
Breastfeeding
Limited Data
Limited data on excretion in breast milk. Consult a doctor before use.
Kidney
Generally Safe
Generally safe, but caution may be required in some patients.
Liver
No Data
No adequate data available. Consult a doctor before use.
Alcohol
Not Advisable
It is not advisable to consume alcohol while taking this medicine.
Driving
Not Advisable
It is not advisable to drive if you experience side effects from this medicine.
Relevant Information
Precautions: This linctus can cause drowsiness — take care with driving, operating machinery, and consuming alcohol. Use with caution in people with asthma or chronic lung disease, glaucoma, urinary retention, or significant liver or kidney impairment, and check with a doctor or pharmacist before use in pregnancy, breastfeeding, or in young children.
When to See a Doctor or Pharmacist: See a doctor or pharmacist if the cough persists beyond about a week, worsens, or is accompanied by fever, coloured or blood-stained phlegm, chest pain, or breathing difficulty, as these may indicate a condition needing further assessment.
Frequently Asked Questions
No. Xepa Cough-En Rx Linctus is a non-prescription product and can be ordered without a prescription. It is still dispensed by a registered pharmacist on DoctorOnCall.
Xepa Cough-En Rx Linctus is a healthcare product containing Diphenhydramine hydrochloride and Ammonium chloride. The full ingredient list is shown in the Composition or Ingredients section on this page and on the product packaging.
It is supplied in a pack size of 120ml. Choose the pack size you need from the options shown on this page before adding the item to your cart.
This page is limited to product, safety and handling information in line with Malaysian rules on medicine information. If you want advice on whether this product suits you, book an online consultation with a doctor or pharmacist on DoctorOnCall.
Follow the instructions printed on the label and in the leaflet supplied with the pack, and do not exceed the stated amount or duration. Handling steps are set out in the Directions for Use section on this page.
Yes. DoctorOnCall offers online consultations with licensed doctors and registered pharmacists, so you can ask about this product, your existing medicines, or anything on the label before you place an order.
Store below 30°C in a cool, dry place away from direct sunlight, keep the cap tightly closed between doses, and store out of the sight and reach of children. Keep it in its original pack and do not use it after the expiry date printed on the packaging.
Stop using the product and speak to a doctor or pharmacist about any reaction that concerns you. Seek medical care immediately for signs of a severe reaction such as difficulty breathing, swelling of the face, lips or throat, or a widespread rash. Reported reactions are listed in the Side Effects section on this page.
Within Malaysia, standard delivery takes 3 to 5 working days. Same-day delivery is available in the Klang Valley for orders placed before 12pm; orders placed after 12pm arrive by the end of the next day.
Orders to Singapore are sent as international deliveries and take 5 to 9 working days. A lump-sum shipping and handling fee applies to every overseas delivery and is shown at checkout.
Customers in Malaysia can pay by FPX online banking, credit or debit card (Visa and Mastercard), and supported e-wallets including Touch ‘n Go eWallet, GrabPay and ShopeePay.
FPX and local e-wallets are tied to Malaysian bank and wallet accounts, so if your delivery address is in Singapore, use the payment options displayed at checkout for that address rather than assuming the same list applies.
Yes. DoctorOnCall ships to Singapore as an international order dispatched from Malaysia, arriving in 5 to 9 working days with a lump-sum shipping and handling fee.
Singapore’s Health Sciences Authority (HSA) allows personal imports of up to three months’ supply of a medicine for your own use or an immediate family member’s, as long as it contains no controlled drugs, psychotropic substances or prohibited items. Keep the product in its original labelled packaging and keep a copy of your prescription or doctor’s letter with it. Quantities above three months’ supply, and medicines containing controlled substances, require prior HSA approval.
Products listed on DoctorOnCall are registered with Malaysia’s Ministry of Health for supply in Malaysia, and each pack carries its MAL registration number.
An order delivered to Singapore arrives as a personal import of a Malaysia-registered product; HSA product registration is not required for personal-use quantities, but it is also not the same as a product registered for sale in Singapore. If you need a locally registered Singapore product, buy it from a pharmacy in Singapore.
DoctorOnCall’s customer care team handles order, delivery and product queries through the contact channels on the site, including WhatsApp and the online help centre.
For deliveries to Singapore, allow more time before chasing an order than you would for a local Malaysian delivery, as the parcel passes through customs clearance and tracking updates can appear later in the journey.
Use Xepa Cough-En Rx Linctus before the expiry date printed on the bottle or carton, and discard any unused linctus after the in-use period stated on the label once opened.
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Important Medical Information
💊 Recommended Dosage:
Dosing is age-based and should follow the directions printed on the product label or a pharmacist’s advice — adults and older children are generally given a higher dose than younger children, taken several times a day as needed for cough, up to the maximum stated on the packaging. This linctus is not generally recommended for very young children without a doctor’s or pharmacist’s specific advice, and the dose should not be increased beyond the label directions.
🛑 Contraindications (Do not use if):
Known hypersensitivity to diphenhydramine, ammonium chloride, or other ingredients in the linctus
Severe liver or kidney impairment (ammonium chloride is cleared via these organs) — seek medical advice first
Infants and very young children, unless specifically advised by a doctor or pharmacist
If you are unsure, please chat with us or consult your doctor.
⚠️ Common Side Effects:
Drowsiness or dizziness
Nausea or vomiting
Stomach discomfort
Mild confusion (especially at high doses)
Dry mouth
Stop taking this medication immediately and consult your doctor if you experience severe allergic reactions or side effects.
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IMPORTANT: Unsure? Chat with our pharmacists (Mon - Sat, 9:00am - 6:00pm) before buying.