Pharmacist Interview Questions

"I liked chemistry and biology at school, but what decided it was a summer job in a local pharmacy. I watched the pharmacist spend five minutes with an older man who was confused about his new tablets, and he left looking relieved. That's when I understood the job is really about people using medicines safely. During my degree I did placements in a hospital and in a community pharmacy, and I also spent a few weeks in a quality lab. The lab was interesting, but I missed talking to patients. So I want to stay in practice, where I can use the science every day and see the difference it makes to someone standing in front of me."

"I've worked in both on placement, and they feel like different jobs. In a hospital you're part of a ward team, you see blood results and charts, and you go deep on fewer patients, things like dose adjustments and medicines reconciliation. In community you're often the easiest health professional to reach. People walk in without an appointment, so you do a lot of quick triage, advice and counselling, and you get to know regulars over years. I'm applying for community because I'm good at explaining things simply and I like that ongoing relationship. The trade-off is less access to clinical records, so I rely more on asking good questions and calling prescribers when something doesn't add up."

"I visited the pharmacy last week and read through your website. You're next to a large health centre, so I'd expect a high volume of repeat prescriptions, a lot of older patients on several medicines, and busy times right after clinics finish. I also saw you offer vaccinations, blood pressure checks and help for people trying to stop smoking. In my current role I run medicine reviews for patients on five or more medicines, and I'm trained to give vaccines, so I could contribute there quickly. What attracted me most is that you seem to invest in services rather than just volume, and I want to spend more of my day on clinical conversations."

"A new prescription came in for methotrexate, and the directions said one tablet daily. For rheumatoid arthritis, methotrexate is taken once a week, and daily dosing can be dangerous, so it stopped me straight away. I checked the patient's history and saw they'd been started by a specialist, which made a transcription slip likely. I called the practice, explained the concern and the prescriber confirmed it should be once weekly, on one named day, and issued a corrected prescription. I recorded the intervention, and when the patient collected I spent a few minutes making sure she knew it was weekly only, which day, and that her folic acid goes on a different day from the methotrexate, as her specialist had set out."

"Early in my career I checked a basket where the technician had picked a similar-looking box, the right medicine but the wrong strength. I missed it and it went out. The next morning a colleague spotted the stock balance was off. I phoned the patient straight away, apologised, and confirmed she hadn't taken any yet. We swapped it that day, I told her doctor, and I completed an incident report. Looking at why it happened, the two strengths sat side by side in near-identical packs. We separated them on the shelf, added a shelf warning, and I changed my own habit so I read the strength off the pack, not the label I'd printed. It still bothers me, and that's why I check the way I do now."

"I'd start by working out how dangerous the error is and how urgent the medicine is. Then I'd try every other route: the on-call or covering doctor at the same practice, the hospital team if it came from a clinic, or an out-of-hours service. I'd also talk to the patient, because they often know what the doctor told them, which can explain an odd-looking dose. If I still can't resolve it and the medicine really can't wait, I'd only supply something I'm sure is safe, for example the previously established dose if the patient has been stable on it, and only if local rules allow it. I'd never dispense what I believe is harmful just because the prescriber is busy. And I'd document every call and decision."

"I think of it as four checks. First is the legal check: is the prescription valid, is it in date, are the patient and prescriber details complete, and does it meet any extra rules if it's a controlled drug. Second is the clinical check, which is the one only a pharmacist can do: is this drug, dose and form right for this person, given their age, other medicines, allergies, kidney function if I know it, and their history. Third is the accuracy check after dispensing: right product, right strength, right quantity, and a correct, clear label. I read the pack, not just the barcode. Last is the handover: I confirm who I'm speaking to and counsel them, especially on anything new or changed."

"The ones I treat most carefully are anticoagulants like warfarin, insulin, opioids, oral methotrexate, and narrow-range drugs like lithium or digoxin. In a hospital I'd add injectable concentrated potassium and chemotherapy. What they share is that a small mistake can cause serious harm. My extra checks depend on the drug. For warfarin and lithium I ask about recent blood tests and whether the dose matches them. For insulin I check the exact product name, because several look and sound alike, and I never accept a unit abbreviation that could be misread. For opioids I compare with the previous dose, especially with modified-release forms. For methotrexate I confirm it's weekly. And I always counsel on these, even for a repeat."

"On a ward, an elderly patient's usual gabapentin was charted at a full adult dose, but her kidney function had dropped a lot on admission, and gabapentin is cleared by the kidneys. I worked out her creatinine clearance and saw the dose was above the recommended range for her. The junior doctor said it was the dose she'd always taken at home. I didn't argue about that. I showed him the calculation and the dosing table, and pointed out she was already drowsy on the nursing notes. I suggested a lower dose and offered to review her with him the next day. He agreed after that. If he hadn't, I'd have documented my advice and raised it with the consultant, because it's the patient's safety, not my opinion, that's at stake."

"A technician I worked with was scanning the barcode on one box and then picking the rest of the quantity from an open shelf without scanning each pack. It was quicker, but it meant a wrong strength could slip past. I didn't say anything in front of the others. At the end of the shift I asked how the workflow felt for her, and she said the scanner was slow and she was under pressure. I explained the risk with an example of how a wrong strength can slip through, and we agreed she'd scan every pack. I also raised the slow scanner with the manager, and it was replaced. The shortcut was a symptom of a process problem, so fixing only her habit wouldn't have been enough."

"Medicines reconciliation means building the most accurate list of what a patient was really taking, then making sure every difference on the new chart or discharge is intentional. Transitions are where errors cluster. A tablet gets missed on admission, a stopped drug gets restarted at home, or a dose changed in hospital never reaches the family doctor. I use at least two sources: the patient or carer, their own medicines, the family doctor's record and their community pharmacy. I ask about things people forget, like inhalers, eye drops, weekly tablets and herbal products. Then I compare with the chart, and each difference is either confirmed with the team as intended, with a reason, or corrected. I document it so the next person doesn't start from scratch."

"I have a few habits. I read the safety updates from the medicines regulator when they come out, I follow the national guidelines for the conditions I see most, and I do my continuing education around gaps I notice at work rather than whatever's easiest. I also like case discussions with colleagues, because a real patient sticks better than an article. A recent example is a safety update on valproate, which needs a pregnancy prevention programme for women who could become pregnant. I realised our team wasn't consistently checking at each supply that the patient knew the risks and had the right warning material. So I made a quick checklist, trained the team, and now we check at every supply."

"To me it's a place where the newest counter assistant feels able to say, can you check this, to the most senior pharmacist, and gets thanked for it. Near misses get recorded, not hidden, because they show you where the next real error will come from. When something goes wrong, the first question is why the system allowed it, not who's to blame, though people still own their part. I'd help by modelling it: logging my own near misses openly, and reviewing the log with the team every month to pick one thing to change, like shelf layout or a double check. And I'd make sure nobody is ever criticised for stopping a supply to ask a question."

"An older man kept coming back for his reliever inhaler more often than he should have needed it. I asked if he'd show me how he used it, and he pressed the canister and then breathed in a second later, so most of the dose was hitting the back of his throat. I showed him with a demonstration device: breathe out, seal your lips, start a slow breath in and press at the same time, then hold your breath for about ten seconds, or as long as is comfortable. He found the timing hard, so I spoke to his doctor about adding a spacer, which makes timing much less important. I asked him to show me back, and he got it. Two months later he was collecting his reliever far less often."

"It was the day before a public holiday, and we had a flood of repeat prescriptions plus walk-ins. The first thing I did was ask a technician to sort everything into waiting, collecting later and deliveries, so I could see what was truly urgent. I gave honest wait times at the counter instead of saying five minutes to everyone. Antibiotics and anything for a child or someone unwell went first. Routine repeats for the next day went to the back. The one thing I didn't compromise on was the final accuracy and clinical check, because rushing that is how errors happen. People waited longer, but nobody got the wrong medicine, and most were fine once they knew the real time."

"First I'd go to them myself instead of leaving the counter staff to take it. I'd say something like, I'm sorry you've waited this long, let me find out exactly where it is. If other people are watching, I'd invite them to the consultation area. Then I'd check the real reason. Maybe we're out of stock, maybe there's a query with the prescriber, maybe it's just stuck in the queue. I'd tell them plainly and give them a time I can keep, or an option like a partial supply now and the rest later if that's allowed. If they need it urgently, I'd move it up. What I won't do is rush the check to make the shouting stop. If they become threatening, I'd follow our safety procedure."

"I start by asking what the doctor told them it's for, because that tells me what they already understand and whether anything's wrong. Then I keep it to the essentials in plain words. For metformin, say, I'd explain it helps control blood sugar, it's taken with or just after meals, and an upset stomach is common at first and usually settles. I'd say what to do if they miss a dose, and the one or two things that mean they should call a doctor. I avoid long lists of every side effect, because people forget them and get scared. At the end I ask them to tell me back how they'll take it, and I remind them they can come back or call with any question."

"I always ask who it's for, what the symptoms are, how long they've had them, what they've already tried, and what other medicines or conditions they have. That tells me most of what I need. Then I listen for warning signs that point to a doctor: symptoms lasting longer than you'd expect, something severe or unusual, blood where it shouldn't be, unexplained weight loss, chest pain, or a treatment that's already failed. I'm also more cautious with babies, older people, pregnancy and people with long-term conditions. If none of those apply, I recommend something suitable and tell them when to come back. If I refer, I explain why and how urgently, so it doesn't feel like being turned away."

"A woman came in asking for a cream for a rash. When I asked about her medicines, she mentioned she'd started lamotrigine a couple of weeks earlier. Lamotrigine carries a known risk of serious skin reactions, often in the first weeks of treatment, so I didn't sell her anything. I told her calmly that the rash needed to be seen by a doctor today and that she shouldn't wait, and I phoned her doctor's practice to make sure they'd fit her in. Once she'd been seen, I submitted a suspected adverse reaction report to the national reporting scheme and noted it on her record. I didn't need to prove the medicine caused it. A reasonable suspicion is enough to report."

"You don't need to be sure the medicine caused it. A reasonable suspicion is enough, and the reporting scheme does the analysis. The priorities are serious reactions, meaning anything that leads to hospital, disability, or is life-threatening, plus reactions to newer medicines that are still under extra monitoring, reactions in children, and anything unexpected that isn't in the product information. Many schemes also want reports on medication errors that caused harm. A single report matters because trials only include a few thousand people, so rare reactions often appear only after the medicine is widely used. Individual reports get pooled, and when enough point the same way, regulators can update warnings or restrict use."

"First I'd recount the stock with a second person, because miscounts happen. Then I'd check every register entry for that drug since the last correct balance: supplies made, deliveries in, returns, anything dispensed but not yet entered. I'd look for the obvious causes, like a wrong quantity written against a prescription, or stock put in the wrong place in the cabinet. If I find an error in the register, I correct it the approved way, with a dated note, never by crossing out or overwriting. If I can't explain the difference, I'd tell the pharmacist in charge and the superintendent or chief pharmacist the same day and report it to the body our local rules require. I'd also document every step I took, because the investigation itself becomes part of the record."

"Travel is a genuine reason, so I'd start without judgement. First, I'd check the rules we work under, because some places limit how early a controlled drug can be supplied or how long a prescription stays valid. Then I'd look at the history. If this is the first early request in a long, steady record, that's different from a pattern of running out early. Either way I'd contact the prescriber, explain the situation and let them decide on an extra supply or a new prescription. I'd also ask practical questions, like how long they're away and whether they need a letter for carrying the medicine abroad. Whatever we decide, I'd record who agreed it and why."

"The exact rules depend on the country and on how strictly a drug is scheduled, but the principles are the same. They're stored in a locked, secure cabinet, and only named people hold the keys. Every receipt and every supply is recorded in a controlled drugs register, usually with a running balance, and we check the physical stock against it regularly. Prescriptions often have extra requirements, like the total quantity written in words and figures, and a shorter validity period. Some places also require ID when collecting. Out-of-date or returned stock can't just go in the waste bin. It has to be destroyed in a set way, often with an authorised witness, and recorded."

"I wouldn't use the stock, and I wouldn't throw it away yet either. First I'd check the thermometer reading is real, then move everything into a working fridge and label it clearly as quarantined, not for use. Next I'd look at the minimum and maximum readings and the log to work out how long it may have been out of the two to eight degree range. Then I'd list every item, especially vaccines and insulin, and contact the manufacturers or our supplier's advice line with the temperatures and duration. They'll say which items are still usable. Anything they can't confirm gets disposed of properly. I'd record the whole incident, get the fridge repaired, and check whether any patient already received stock from it."

"I'd ask what's worrying them, because it's usually one of three things: the tablet looks different, they had a bad experience before, or they think cheaper means weaker. Then I'd explain simply that the generic has the same active ingredient at the same strength, and it has to be shown to work in the body in the same way before it's allowed on the market. The difference is mostly the name, the colour and the filler ingredients. If they've reacted to an ingredient before, that's a real reason and I'd look into it. And for some medicines, like certain epilepsy treatments, staying on the same product can matter, so I'd check. If the brand is an option under our rules, they can have it, but I'd want them to choose knowing the facts."

"A generic has the same active ingredient, strength, dosage form and route as the brand, and it has to show bioequivalence, meaning the rate and extent of absorption fall within tight limits of the original. For most medicines that means switching is safe. I'm careful with drugs that have a narrow therapeutic index, where a small change in blood level matters, such as some antiepileptics, lithium or ciclosporin, and many prescribers prefer patients stay on one product for those. Modified-release products can behave differently between makers, and inhalers or injection devices need the patient trained on the new device. And I follow the prescriber's instruction if they've said not to substitute, plus whatever our local substitution law allows."

"The usual ones are vaccines, unopened insulin, many biological medicines like some injections for arthritis, and a few eye drops and liquids. Most need two to eight degrees. The chain is only as strong as its weakest handover, so fridge deliveries get unpacked first, straight into a proper pharmaceutical fridge, not a domestic one. We don't overfill it or pack items against the back wall, no food goes in, and we record the current, minimum and maximum temperatures at least daily, then reset. When a patient collects, I hand the item over at the last moment, use a cool bag if they're travelling, and explain storage at home: in the fridge, not the freezer. For insulin in use, I tell them to check the leaflet for how long it can stay at room temperature."

"First I'd ask a few questions: how long they've had the pain, whether it followed an injury, and whether there's anything like numbness, trouble passing urine or fever, because those need a doctor. Then the key point is the warfarin. I'd steer them away from anti-inflammatory painkillers like ibuprofen or naproxen, and aspirin, because together with warfarin they raise the risk of bleeding, including in the stomach. Paracetamol at normal doses is usually the better choice, but I'd mention that taking it regularly for many days can affect their INR, so they should tell whoever monitors their warfarin. I'd add simple advice like heat and staying gently active, and ask them to come back or see their doctor if it isn't settling."

"I split them into two big groups. Pharmacokinetic interactions change how much drug reaches the body. At the absorption stage, ciprofloxacin binds to calcium, iron, or the magnesium and aluminium in antacids, so less gets absorbed, and the fix is to separate the doses. At the metabolism stage, clarithromycin blocks the liver enzyme that breaks down simvastatin, so statin levels rise and the risk of muscle damage goes up; that combination should be avoided. The other group is pharmacodynamic, where drugs act on the same system. Warfarin with an anti-inflammatory like ibuprofen raises bleeding risk. An antidepressant like sertraline with tramadol adds up serotonin effects and can cause serotonin syndrome. Knowing the mechanism tells me whether to separate, monitor, adjust or avoid."

"I never click through by habit, but I also can't phone a doctor about every alert, so I ask three questions. How serious is the possible harm and how solid is the evidence? A combination linked to bleeding or dangerous heart rhythms gets my attention; a theoretical minor effect usually doesn't. Next, what's true for this patient? Age, kidney function, the dose, and whether this is a new combination or one they've taken safely for years. Last, is it already managed? Some combinations are deliberate, with monitoring in place, like an ACE inhibitor with a potassium-sparing diuretic where potassium is being checked. If it's new, serious and not clearly managed, I contact the prescriber. Either way, I note my decision."