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Cough, Cold & Flu Medicines: What Works, What to Avoid

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In 30 seconds
  • Colds and coughs are generally caused by a virus (antibiotics don’t work!) but can be caused by bacteria (may need antibiotics) or an allergy.
  • A virus usually improves within 7–10 days, though the cough can linger for 3–4 weeks.
  • A bacterial cold persists longer than 10 days and gets worse as time goes on (fever worsens).
  • Both can mean runny/blocked nose, sore throat, cough, tired/achy, fevered, and clear, yellow or green mucus.
  • Allergy symptoms include itching, sneezing, watery eyes, runny nose (mucus clear) and no fever.
  • Match the medicine to the symptom, dry cough, chesty cough, blocked nose, sore throat and aches each have a different treatment. One ingredient may be all you need.
  • Check it against what you already take. Decongestants are not for people on blood-pressure or heart tablets, with diabetes, etc. Dry-cough bottles are to be avoided with antidepressants or asthma. Ibuprofen is to be avoided with blood thinners or blood-pressure medication. These are some of the ones that catch people out.
  • Count the paracetamol. Lemsip, Night Nurse, Benylin Day & Night and Panadol all contain paracetamol. Never more than 8 × 500mg in a day.
  • Under 6: no cough or cold medicines at all, with the exception of saline, honey (over 1), Bronchostop Junior, vapour products, fluids and Calpol. Any fever, wheezing, noisy breathing, croup-like cough or signs of dehydration: refer to GP.

Stand at any cough-and-cold shelf and you’ll see forty boxes making the same promises. Behind the counter it’s simpler: match the medicine to the symptom, you may only need one item, and check it against the medicines you already take. Below is every type of cough bottle, cold tablet, nasal spray and lozenge we sell, who can’t use each one, exactly what our pharmacists ask before recommending, and when a cough needs a doctor rather than a bottle.

The six to know, one for each job

Virus, bacteria or allergy?

VirusBacteriaAllergy
Generally the cause of colds and coughs. Antibiotics don’t workMay need antibiotics
Usually improves within 7–10 days, though the cough can linger for 3–4 weeksPersists longer than 10 days and gets worse as time goes on (fever worsens)No fever
Both can mean runny/blocked nose, sore throat, cough, tired/achy, fevered, and clear, yellow or green mucusItching, sneezing, watery eyes, runny nose (mucus clear)

Start with the symptom, not the brand

A cold/cough is generally a virus. Nothing on the shelf shortens it; the medicines only make the symptoms bearable while your immune system does the work (usually 7–10 days, with a cough that can linger up to three weeks). So the first question is always: which symptom is bothering you most?

SymptomWhat actually helpsWhat to skip
Dry, tickly cough, nothing comes up, worse talking or at nightA cough suppressant (dextromethorphan) or a soothing demulcent syrup (glycerine, honey & lemon); lozenges; honey in warm waterExpectorants, they’re for the opposite problem
Chesty cough, rattly, phlegm coming upAn expectorant (guaifenesin) or a mucolytic (carbocisteine, ask at the counter), plenty of fluids, steamSuppressants, don’t trap a productive cough in your chest
Night-time cough, fine by dayTreat the cause: post-nasal drip (saline rinse, a decongestant in the morning or sedating antihistamine at bedtime) or reflux (no late meals, an antacid). Extra pillow, honey before bed. Not sleeping: a cough suppressant (dextromethorphan) or a suppressant and drowsy antihistamine in one (diphenhydramine)Random cough syrups, they rarely fix a night cough
Blocked nose / sinus pressureSaline spray or rinse first; then a decongestant spray (max 7 days) or tablet (pseudoephedrine or phenylephrine) if you’re allowed it; steam; mentholDecongestants if you have high blood pressure, heart disease or take certain antidepressants, see below. They make you alert, awake and increase heart rate: only for taking earlier in the day
Runny nose, sneezingA sedating antihistamine at night (chlorphenamine / diphenhydramine) dries it up and helps sleep; salineNon-drowsy antihistamines, they only help if there’s an allergic element
Sore throatParacetamol or ibuprofen for the pain; anaesthetic/antiseptic lozenges or spray (Strepsils, Difflam); salt-water gargle; warm drinksAntibiotics, most sore throats are viral
Aches, fever, headacheParacetamol or ibuprofen, cheaper and cleaner than “cold & flu” combosDoubling up: a Lemsip plus Panadol is two doses of paracetamol

Not sure whether it’s a cold, the flu or Covid? Our guide to telling cold, flu and Covid apart covers the differences and when to test.

Remedy & interaction checker

Tap your symptoms, then anything that applies to you. We’ll show what fits, what to avoid, and which products on our shelves match. It’s guidance, not a diagnosis, our pharmacists are a WhatsApp away for anything borderline.

1. What’s bothering you?
Dry / tickly coughChesty coughNight coughBlocked nose / sinusRunny nose / sneezingSore throatAches / fever / headache
2. Does any of this apply?
Child under 6Child 6–12PregnantBreastfeedingHigh blood pressure / heart conditionAntidepressantsAsthmaDiabetesWarfarin / blood thinnerGlaucoma or enlarged prostateKidney or liver problemsOver 65On ramipril / lisinopril / perindoprilNeed to drive or work machinery

Cough bottles, one by one

There are only five things a cough bottle can be, whatever the label says. Read the small print for the ingredient and you’ll know which drawer it belongs in.

TypeIngredientForAgeCan’t be used / interacts with
Suppressant (antitussive)Dextromethorphan, e.g. Benylin Dry Coughs Non-Drowsy, Robitussin DryDry, tickly cough that stops you sleeping or talking12+SSRIs/SNRIs, tramadol, MAOIs (serotonin syndrome); certain Parkinson’s medication, other sedatives; not for a chesty cough; not in asthma flare-ups/COPD; max 7 days
Sedating suppressantDiphenhydramine + menthol, e.g. Benylin Dry Coughs Original, Benylin Chesty OriginalNight-time cough; you want to sleep12+Driving next day, alcohol, other antihistamines or sedating night products, glaucoma, prostate, over-65s, asthma/COPD, can worsen constipation
Demulcent (soothing)Glycerine, honey, lemon, simple linctus, e.g. glycerine & aniseed syrup, Bronchostop JuniorAny tickle; children (6+); anyone on lots of other medicinesUsually 1+ (honey only over 1 year)Essentially none, watch sugar with diabetes (sugar-free versions exist)
ExpectorantGuaifenesin, e.g. Benylin Chesty Non-Drowsy, Robitussin ChestyChesty cough: thins phlegm so it comes up12+Very few interactions; don’t combine with a suppressant; drink water with it
Mucolytic Pharmacy onlyCarbocisteine (Exputex)Thick, stubborn phlegm; chesty coughs in COPD/bronchitis2+ (children’s versions), askActive stomach ulcer (carbocisteine); ask if you take blood thinners. Sold at the counter, not online
Pholcodine is gone. Every pholcodine cough linctus was withdrawn across Ireland and the EU in 2023 because it can cause severe allergic reactions to anaesthetics months later. If you have an old bottle in the press, bring it in for disposal, and tell your anaesthetist if you ever took it.
Codeine linctus is still available for a severe dry cough, but only from the pharmacist in person, for short courses, and never online. It causes drowsiness and constipation, interacts with other sedatives and alcohol, and isn’t for under-12s (or under-18s after tonsil surgery).

What we’d actually reach for: dry cough → honey first, then Benylin Dry; chesty → Benylin Chesty Non-Drowsy and a big jug of water; on lots of medicines or pregnant → a plain glycerine & honey syrup. Most coughs after a cold settle within three weeks whatever you take.

On our shelf: cough bottles and rubs

Cold & flu tablets, sachets and “all-in-ones”

Every combination product is a painkiller plus one or two extras. Knowing which extras are inside is what keeps you safe.

ProductWhat’s insideGood forWatch out
Lemsip Cold & Flu / Lemsip Max sachetsParacetamol (500mg / 1000mg) + phenylephrine (decongestant)Aches, fever and a blocked nose together; a hot drink that feels like it’s doing somethingThe amount of paracetamol varies between 500mg and 1000mg per dose/sachet. The maximum dose is 4 x 1000mg or 8 x 500mg in 24 hours with at least 4 hours between doses. Phenylephrine: not with high blood pressure, heart disease, MAOIs; diabetes, glaucoma, overactive thyroid, not in pregnancy. Is a stimulant, to be taken earlier in the day
Benylin Day & NightDay: paracetamol + a decongestant. Night: paracetamol + diphenhydramine (sedating)Colds where you need to function by day and sleep by nightSame paracetamol rule. Night tablets: no driving, no alcohol, not with other antihistamines, not for over-65s ideally. Decongestant: see above
Sudafed 60mg Pharmacy onlyPseudoephedrine onlyBlocked nose and sinus pressure when you don’t need a painkiller, the strongest tablet decongestant12+, max 4 a day. Not with high or uncontrolled blood pressure, heart disease, overactive thyroid, glaucoma, prostate problems, severe kidney disease, MAOIs; caution in diabetes; avoid in pregnancy. Can keep you awake, no doses after 4pm
Nurofen Cold & Flu, Nuromol-type combosIbuprofen (± paracetamol) + pseudoephedrineAches and congestion if you tolerate ibuprofenAll the ibuprofen rules (stomach, blood pressure, kidneys, asthma, blood thinners, pregnancy) plus all the decongestant rules
Night Nurse-type liquidsParacetamol + promethazine (sedating) + dextromethorphanOne dose at bedtime when everything hurts and you can’t sleepThree ingredients, three sets of interactions: antidepressants etc (dextromethorphan), sedatives/alcohol/driving (promethazine), paracetamol counting
Plain paracetamol or ibuprofenOne ingredientHonestly, most colds, cheaper, and you can add a single decongestant or syrup only if you need itParacetamol max 4g (8 × 500mg) in 24 hours from all sources; ibuprofen with food, max 1200mg a day over the counter. Ask about ibuprofen with blood pressure tablets, stomach ulcer, blood thinners, other NSAIDs or an allergy to ibuprofen
The paracetamol trap. Lemsip, Benylin Day & Night, Night Nurse, Panadol Cold & Flu, Solpa-Extra and Panadol Night, Sinutab all contain paracetamol. Taking two of them, or one plus plain paracetamol, is how people quietly exceed the daily limit. Rule: one paracetamol-containing product at a time, 4 hours apart, never more than 8 × 500mg in 24 hours.

Deciding between the two painkillers? Our guide to ibuprofen vs paracetamol and whether you can take them together covers it.

On our shelf: cold & flu tablets and sachets

Decongestants: tablets vs sprays, and when you can’t use them

A blocked nose is swollen blood vessels in the lining, not just mucus. Decongestants shrink those vessels, which is exactly why they can also raise blood pressure.

Nasal sprays and drops

  • Otrivine spray / drops (xylometazoline 0.1%) and Vicks Sinex (oxymetazoline): work in minutes, last 8–10 hours. Adults and children 12+ only. Maximum 7 days, use for longer causes “rebound” congestion that’s worse than the cold. This is usually reversible after stopping but prolonged overuse can damage the nasal lining. Avoid with MAOI antidepressants, uncontrolled high blood pressure, glaucoma; not in pregnancy unless a pharmacist says so; can sting and dry the nose.
  • Sterimar saline spray and NeilMed sinus rinse: sea water or salt solution. No drug, no interactions, safe in pregnancy, for babies (drops) and for as long as you like. Use before a medicated spray so it reaches the lining. The rinse is the single most effective thing for sinus pressure.
  • Vicks inhaler stick, Olbas, Vicks VapoRub: menthol, eucalyptus and camphor give a cooling “I can breathe” feeling for 10–20 minutes. No interactions with medicines. VapoRub is for 2 years and up, chest and back only, never in or under the nostrils, and go easy near the face if there’s asthma. Snufflebabe can be used from 3 months, is applied to the chest. Olbas oil isn’t for a baby’s skin; use the children’s version on bedding.

Decongestant tablets

Pseudoephedrine (Sudafed, Benylin Day tablets, Nurofen Cold & Flu) is the effective one and is pharmacy-only in Ireland, we’ll ask a couple of questions before selling it. Phenylephrine (Lemsip, most supermarket “cold & flu” tablets) is weaker; the evidence for it is thin, so if congestion is your main problem, a spray or saline rinse usually beats it.

Don’t use any decongestant, tablet or spray, if you have: high or uncontrolled blood pressure, heart disease or a previous heart attack/stroke, diabetes, an overactive thyroid, narrow-angle glaucoma, an enlarged prostate, severe kidney disease, or you take an MAOI antidepressant (or did in the last 14 days). Avoid in pregnancy (especially the first 12 weeks) and, for pseudoephedrine, while breastfeeding. Never stack them: a Lemsip Max plus a Sudafed plus an Otrivine is three decongestants.

On our shelf: sprays, drops, saline and menthol

Sore throat: lozenges, sprays and what really works

  • Painkillers first. Regular paracetamol or ibuprofen relieves throat pain better than any lozenge; a soluble version gargled then swallowed works fastest.
  • Antiseptic lozenges, Strepsils, Strepsils Extra (adds a mild anaesthetic): 6 years and up, one every 2–3 hours, max 12 a day. Strepsils Plus (adds a stronger local anaesthetic, lidocaine) numbs for about an hour, don’t eat hot food while numb. Strepsils Intensive lozenges contain an anti-inflammatory painkiller, flurbiprofen, like ibuprofen, and so should not be taken with ibuprofen, but can be with paracetamol.
  • Anti-inflammatory spray, Difflam (benzydamine) spray or lozenges: genuinely reduces swelling; 6+; avoid if you’re allergic to aspirin or ibuprofen.
  • Soothers, Jakemans, honey, warm drinks, salt-water gargle (half a teaspoon in a glass): no interactions, just comfort. Most are sugary, mind them with diabetes.
  • When it’s not just a sore throat: can’t swallow saliva, drooling, a muffled “hot potato” voice, swelling on one side, a rash, or a child with fever and no cough (possible strep), doctor today. Lasting more than a week, or you’ve had four or more bad ones this year, GP.

On our shelf: sore throat

Antihistamines use in a cold (and the “drowsy” trap)

Old-style antihistamines, chlorphenamine (Piriton), diphenhydramine (Benylin Originals, Benylin Night), promethazine (Night Nurse, Phenergan), dry a streaming nose and help you sleep, which is why they’re in every “night” product. The price is drowsiness that lasts into the morning, plus dry mouth and, in older people especially on other sedating medications, confusion and falls. Don’t combine two of them (Piriton plus a Night product is common), don’t add alcohol, and don’t drive on them. Non-drowsy antihistamines (cetirizine, loratadine, fexofenadine) do almost nothing for a cold; they’re for hay fever and allergies, where they’re excellent.

On our shelf: antihistamines

Interactions with the medicine you already take

Bring your list to the counter or WhatsApp us a photo of the boxes, but here’s the quick version pharmacists run through in their heads.

If you take / haveAvoidUse instead
Blood pressure or heart medicines; previous heart attack or strokePseudoephedrine, phenylephrine, decongestants (Sudafed, Lemsip, Benylin Day and Night, Sinutab)Saline spray/rinse, steam, menthol, paracetamol. Decongestant sprays are suitable short-term if blood pressure is controlled
Antidepressants, SSRIs (sertraline, escitalopram…), SNRIs (venlafaxine), tramadol, St John’s wortDextromethorphan (Benylin Dry Non-Drowsy, Night Nurse, Robitussin Dry)Glycerine/honey syrup, lozenges; ask before any combination
MAOI antidepressants (phenelzine, moclobemide, selegiline), now or in the last 14 daysAll decongestants and dextromethorphan and diphenhydramineSaline, steam, paracetamol only, and tell us
Warfarin, apixaban, rivaroxaban, clopidogrel, aspirinIbuprofen, aspirin-containing products, Nurofen (ibuprofen) and Nurofen products, Difflam if aspirin-allergic. Use Bronchostop with cautionParacetamol (short courses; warfarin users watch INR with regular use)
Ramipril, lisinopril, perindopril, enalapril (ACE inhibitors)A cough bottle for a cough these tablets may be causing; ibuprofen (kidney strain, especially with a water tablet)Talk to your GP about the cough; paracetamol for pain
DiabetesSugary syrups and lozenges in quantity; decongestants push glucose upSugar-free syrups (ask), saline, paracetamol; check glucose more often
Asthma or COPDIbuprofen/aspirin unless you know you tolerate them; suppressants during a flare; VapoRub near the faceParacetamol; expectorants; your reliever inhaler as prescribed, a flare needs your GP, not a syrup
Kidney diseaseIbuprofen, pseudoephedrine, high-dose combosParacetamol, saline, honey
Liver disease or heavy alcohol useMultiple paracetamol products; sedating antihistamines with alcoholParacetamol at the lowest effective dose, ask us about limits
Glaucoma or enlarged prostateSedating antihistamines, decongestantsSaline, steam, paracetamol, honey syrups
EpilepsySedating antihistamines (can lower seizure threshold), high-dose decongestantsParacetamol, saline, demulcent syrups
Over 65Sedating antihistamines (falls, confusion, urinary retention), decongestantsSaline, steam, honey, paracetamol; lower ibuprofen doses only if kidneys are fine
PregnantAsk the pharmacist. Decongestant tablets and sprays, ibuprofen (especially after 20 weeks), most cough bottles, DifflamParacetamol, saline, steam, honey, simple lozenges
BreastfeedingAsk the pharmacist. Pseudoephedrine (reduces milk), sedating antihistaminesParacetamol, ibuprofen, saline, honey, glycerine syrup
Other sedatives, sleeping tablets, strong painkillers, alcoholDrowsy antihistamines, codeine linctus, sedating night productsNon-drowsy options only

Children: the rules are strict for good reason

  • Under 6: no over-the-counter cough or cold medicines at all, they don’t work in this age group and the risks aren’t worth it. Bronchostop Junior can be given as a soothing alternative but use in under 3 year olds requires pharmacist consultation. Use Calpol or children’s ibuprofen for fever or discomfort, saline drops and a nasal aspirator for a blocked nose, fluids, and honey (over 1 year only, never for babies).
  • 6 to 12: cough and cold products are pharmacy-only and given on pharmacist advice, dosed by age and weight. Adult syrups, Sudafed tablets, adult-strength nasal sprays and lozenges that could be a choking hazard are out.
  • 12 and over: most adult products are fine at the pack dose, but a 12-year-old still gets the paracetamol-counting rule and the 7-day spray rule.
  • See a doctor today for a barking (croup) cough, wheeze or fast breathing, ribs sucking in, a baby under 3 months with any fever, refusing fluids, or a rash that doesn’t fade under a glass. Our child fever guide walks through each one.

On our shelf: for children

When a cough or cold needs a doctor, not a bottle

See your GP (or call us and we’ll tell you how urgently) if: a cough lasts more than 3 weeks; you cough up blood; you’re breathless, wheezy or have chest pain; a fever is over 39.5°C or lasts more than 3 days; you’re getting worse after 7–10 days rather than better; you have unexplained weight loss or night sweats; you smoke and your usual cough changes; you have COPD, heart failure or a weakened immune system and pick up a chest infection; or a sinus pain is severe, one-sided, with a swollen eye or a high fever.

A post-viral cough can linger up to 8 weeks after the cold has gone, annoying, not dangerous, but the 3-week mark is when we want it checked, because that’s also where chest infections, asthma and the odd more serious cause start to show. Chest infections in high-risk adults can be assessed and treated under the pharmacist prescribing service, see what pharmacists can prescribe in Ireland. And the best cold-and-flu medicine of all is still the flu vaccine.

Frequently asked questions

How do I know if my cold is viral or bacterial?

A virus usually improves within 7–10 days, though the cough can linger for 3–4 weeks. A bacterial cold persists longer than 10 days and gets worse as time goes on (fever worsens), and may need antibiotics. Both can mean runny/blocked nose, sore throat, cough, tired/achy, fevered, and clear, yellow or green mucus. Antibiotics don’t work on a virus.

Is it a cold or an allergy?

Allergy symptoms include itching, sneezing, watery eyes, runny nose (mucus clear) and no fever. A cold can mean runny/blocked nose, sore throat, cough, tired/achy and fevered, with clear, yellow or green mucus.

What is the best cough medicine for a dry cough?

For a dry, tickly cough: honey in warm water first (it holds up in trials), then a dextromethorphan suppressant such as Benylin Dry Coughs Non-Drowsy for the daytime, or the sedating “Original” version at night. Skip expectorants, they’re for chesty coughs, and avoid dextromethorphan if you take an SSRI, SNRI or tramadol.

What is the best medicine for a chesty cough?

An expectorant (guaifenesin, Benylin Chesty Non-Drowsy) or a pharmacy mucolytic such as carbocisteine, plus plenty of water and steam. Don’t suppress a productive cough; it’s clearing the infection.

Can I take Sudafed with blood pressure tablets?

No. Pseudoephedrine raises blood pressure and heart rate and can undo what your tablets are doing; the same applies to phenylephrine (Lemsip, Sinutab). Use a saline spray or sinus rinse, steam and menthol instead, and paracetamol for aches. Decongestant sprays are suitable short-term if blood pressure is controlled.

Can I use Otrivine for more than a week?

No, 7 days maximum. After that the nose lining rebounds and becomes more blocked than before, a cycle that can last years. If you’re still blocked at day 7, switch to saline and see us.

Can I take Lemsip and paracetamol together?

No. In Lemsip, the amount of paracetamol varies between 500mg and 1000mg per dose/sachet. The maximum dose is 4 x 1000mg or 8 x 500mg in 24 hours with at least 4 hours between doses. Panadol on top counts towards that same limit, so count every paracetamol-containing product.

Which cough medicine is safe with antidepressants?

A simple glycerine, honey & lemon syrup or plain lozenges. Avoid dextromethorphan (most “dry cough” bottles and Night Nurse) with SSRIs, SNRIs, tramadol or MAOIs, and avoid all decongestants with MAOIs. Bring the name of your antidepressant and we’ll match a product.

Can I give my child cough medicine?

Not under 6, with one exception: Bronchostop Junior can be given as a soothing alternative, but use in under 3 year olds requires pharmacist consultation. Between 6 and 12, only a children’s product chosen and dosed by the pharmacist. Fever and discomfort: Calpol or children’s ibuprofen. Blocked nose: saline drops. Honey from 1 year. Any wheeze, noisy breathing, croup-like cough or signs of dehydration: GP.

Is it safe to take cough medicine when pregnant?

Most bottles aren’t recommended. Paracetamol, saline spray, steam, honey and simple lozenges are the pregnancy kit; avoid decongestant tablets and sprays and ibuprofen. Ask us before anything else.

Why has my cough lasted three weeks?

A post-viral cough can linger up to 8 weeks, but three weeks is the point to get it checked for a chest infection, asthma or, in smokers, something more. Blood, breathlessness, chest pain or weight loss mean don’t wait.

Tell us your symptoms and the tablets you take

Send a photo of your medicine boxes and describe the cough, our pharmacists will pick the one product that fits, or tell you honestly when the answer is honey, saline and patience. Portlaoise collection or delivery nationwide.

WhatsApp 085 840 7548Shop cough, cold & flu

How our pharmacists decide what to recommend

There’s no mystery to it. Every recommendation at our counter runs through the same short checklist, and knowing it helps you get the right thing faster, whether you’re standing in front of us in Portlaoise or messaging us on WhatsApp.

What we’ll ask you, and why

Five quick questions, thirty seconds, and it’s how we avoid the two mistakes that matter: the wrong product for the cough, and a product that clashes with your other medicines.

  • Who is it for? Age changes everything. Under 6: no cough or cold medicines, saline, honey (over 1 year), fluids, Calpol or children’s ibuprofen. 6–12: a children’s product we choose and dose by weight. Adult syrups, Sudafed and adult nasal sprays start at 12. Vicks VapoRub from 2. Lozenges and throat sprays from 6.
  • What exactly are the symptoms? Dry or chesty? Blocked or streaming? Fever? That decides the shelf: suppressant vs expectorant, decongestant vs antihistamine, painkiller vs nothing at all.
  • How long has it been going on? A cold: 7–10 days. A cough after it: up to 3 weeks. Beyond that, or getting worse after a week instead of better, we’d rather you saw a GP than bought another bottle.
  • What have you already taken today? This is the paracetamol count. Lemsip, Benylin Day & Night, Night Nurse, Solpa-Extra, Panadol Night and plain paracetamol all count. One at a time, four hours apart, no more than eight 500mg doses in 24 hours, less if you have liver problems, weigh very little or drink heavily.
  • What else do you take, including the ones people forget? Blood-pressure and heart tablets, antidepressants, blood thinners, inhalers, HRT, the pill, nasal sprays, sleeping tablets. Each one rules something in or out: blood pressure/heart → no decongestants; SSRIs, SNRIs, tramadol, MAOIs → no dextromethorphan; MAOIs → no decongestants either; warfarin, apixaban, rivaroxaban → no ibuprofen or aspirin products; ramipril-type tablets → the cough may be the tablet, not a cold.
  • Why we ask before selling Sudafed Pseudoephedrine is pharmacy-only for a reason: it raises blood pressure and heart rate. We’ll check for high or uncontrolled blood pressure, heart disease, an overactive thyroid, glaucoma, prostate trouble, kidney disease, diabetes, pregnancy or breastfeeding, and MAOI antidepressants. If any apply, we’ll hand you saline, menthol and paracetamol instead, and we won’t sell more than one pack.
  • Anything marked “drowsy” Chlorphenamine, diphenhydramine and promethazine (Piriton, Benylin Originals, Night Nurse) mean no driving, no alcohol, and not on top of another antihistamine or sleeping tablet. We steer people over 65 away from them altogether because of falls and confusion.
  • Nasal sprays get a stop date Otrivine and Sinex work brilliantly for 7 days and then start causing the congestion. We’ll write the last day on the box. Saline first, at any age, for as long as you like.
  • Pregnant or breastfeeding Paracetamol, saline, steam, honey and simple lozenges. No decongestant tablets or sprays, no ibuprofen after 20 weeks, and no dry-cough or codeine bottles without checking with us first.
  • Old bottles in the press Pholcodine linctus was withdrawn in 2023, bring it in for disposal and mention it if you’re ever having an anaesthetic. Codeine linctus is pharmacist-only, short courses, over-12s, never online.
  • When we’ll send you to your GP instead A cough over 3 weeks · coughing up blood · breathlessness, wheeze or chest pain · fever over 39.5°C or lasting more than 3 days · worse after 7–10 days · unexplained weight loss or night sweats · a smoker whose cough has changed · COPD, heart failure, diabetes or a weakened immune system with a chest infection · a baby under 3 months with any fever · a barking cough, noisy breathing or ribs sucking in · a rash that doesn’t fade under a glass · unable to swallow saliva or a swollen one-sided throat. Adults who qualify can also be assessed for a chest infection under the pharmacist prescribing service.
  • What you’ll never get from us The big “max strength” box when a €3 single-ingredient one fits better. One ingredient beats five, it’s cheaper, safer, and it’s how we’d treat our own families.


Medically reviewed by Deirdre O'Donovan, MPSI, Pharmacist, Laois Pharmacy (PSI reg. 4772). Last reviewed September 2026.
About the reviewer

Deirdre O'Donovan, MPSI is the Pharmacist at Laois Pharmacy, Portlaoise, registered with the Pharmaceutical Society of Ireland (PSI reg. 4772). Our health articles are written and reviewed by our pharmacy team to be accurate, current and easy to understand. This is general information and not a substitute for personal advice, talk to our pharmacists about your own situation.

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