Sports Injuries

Clinical Snapshot

The majority of sports-related injuries encountered in primary care and community pharmacy are acute soft-tissue injuries — sprains (ligament), strains (muscle or tendon), and contusions (a direct blow bruising muscle and soft tissue) — rather than fractures, stress fractures, or joint dislocations. This chapter covers the pharmacologic and non-pharmacologic management of these acute soft-tissue injuries specifically; chronic overuse tendinopathy (e.g., patellar or Achilles tendinosis, lateral epicondylosis) follows a different, longer-timeline management paradigm and is not covered here. The single most important, and most commonly missed, practice update in this area is that prolonged rest delays recovery: current sports-medicine guidance replaces the older RICE approach with early, protected, optimally-loaded activity (the POLICE protocol), alongside 1st-line acetaminophen and/or NSAID analgesia (oral or topical) and a low threshold for imaging when a small set of validated clinical criteria suggest a possible fracture.^[1]

Recognize the Condition

Three types of acute soft-tissue sports injury

Sprain

A partial or complete tear of a ligament, the fibrous band connecting bone to bone across a joint. Most commonly affects the ankle (lateral ligament complex), knee, or wrist. Presents with joint-line tenderness, swelling, and pain with stress testing of the involved ligament (e.g., anterior drawer or talar tilt at the ankle).

Strain

A partial or complete tear of a muscle or its tendon, typically from sudden forceful contraction or overstretching (e.g., a hamstring, quadriceps, or calf strain). Presents with focal muscle tenderness, pain with active contraction and passive stretch of the involved muscle, and sometimes a palpable defect or visible bruising with a more complete tear.

Contusion

Bruising and hematoma of muscle or soft tissue from a direct blow, without ligament or tendon disruption. Presents with localized tenderness and swelling at the site of impact, with pain on active and passive stretch similar to a strain, but with a clear history of direct trauma rather than a stretching or contraction mechanism.

Grading severity: Grade I to III

The same 3-tier framework is applied to sprains, strains, and contusions at the point of care, and determines both the expected recovery time and the threshold for imaging or specialist referral.

Grade I — mild

Minimal fiber disruption. No meaningful laxity or instability on stress testing. The patient can bear weight or use the limb without significant pain, with only minimal swelling. Expected recovery: days to about 2 weeks with non-pharmacologic treatment alone.

Grade II — moderate

Partial tear with some fiber disruption. Possible mild laxity on stress testing. Weight-bearing or use of the limb is painful, with noticeable swelling and bruising. Expected recovery: roughly 2 to 6 weeks, usually with bracing/taping support and structured rehabilitation.

Grade III — severe

Complete tear or rupture. Significant laxity or instability on stress testing, marked swelling, and often an inability to bear weight or use the limb at all. Expected recovery: 6 to 12 weeks or longer, and sports-medicine or orthopedic referral should be considered up front — not only after conservative treatment has failed — given the possibility of a surgical indication.^[2]

Risk Factors

Previous injury to the same structure — the single strongest predictor of reinjury, especially without completed rehabilitation.
Inadequate warm-up or stretching before activity.
Poor overall conditioning, strength, or flexibility relative to the demands of the sport.
Rapid increases in training volume or intensity ("too much, too soon"), or a sudden change in training surface or terrain.
Improper or worn footwear, or inadequate protective equipment.
Poor technique or biomechanics specific to the sport (e.g., faulty landing mechanics or cutting technique).
Fatigue — most sports injuries occur later in a training session or competition, when neuromuscular control is reduced.
Playing-surface and environmental conditions (uneven ground, wet or icy surfaces).
Participation in a sport involving contact, collision, jumping, or rapid changes of direction.

Red Flags & Refer

Most acute soft-tissue injuries can be safely managed without imaging. Refer promptly, or obtain imaging before starting routine treatment, for any of the following:

Inability to bear weight (4 steps) immediately after the injury and at the time of assessment, or point bone tenderness at a fracture-specific landmark — see Assessment & Diagnosis for the Ottawa Ankle and Knee Rule criteria that define this threshold precisely.
Gross joint deformity or suspected dislocation.
Signs of neurovascular compromise distal to the injury (absent or diminished pulse, pallor, numbness, weakness, or a cold limb) — a true emergency requiring immediate assessment.
Signs of compartment syndrome — pain out of proportion to the apparent injury, pain with passive stretch of the compartment muscles, or a tense, swollen compartment — a surgical emergency requiring urgent evaluation.
An open wound or laceration over the injury site.
Suspected complete tendon rupture (e.g., a positive Thompson test for an Achilles rupture, or an inability to actively move the joint against gravity) — needs prompt assessment for possible surgical repair.
Suspected growth-plate (physeal) injury in a skeletally immature athlete, even after a seemingly minor mechanism.

Assessment & Diagnosis

Differentiating sprain, strain, and contusion

Feature	Sprain	Strain	Contusion
Structure involved	Ligament	Muscle or tendon	Muscle/soft tissue (no ligament or tendon disruption)
Typical mechanism	Joint forced beyond its normal range (e.g., ankle inversion)	Sudden forceful contraction or overstretching	Direct blow or impact
Tenderness pattern	Joint-line, over the involved ligament	Focal, within the muscle belly or at the musculotendinous junction	At the point of impact
Pain with stress testing	Pain and possible laxity with passive stress of the joint (e.g., talar tilt, anterior drawer)	Pain with active contraction and passive stretch of the involved muscle	Pain with active and passive stretch, similar to a strain, but with a direct-trauma history
Key history clue	Joint twisted or rolled beyond its normal range	A "pop" or sudden sharp pain during forceful movement	A clear direct impact (collision, being struck, or falling onto an object)

History

Exact mechanism of injury (twisting, direct blow, forceful contraction) and the position of the limb/joint at the time.
Timing — when the injury occurred, and whether pain and swelling developed immediately (suggesting more significant structural disruption) or gradually over hours.
Ability to bear weight or continue activity immediately after the injury versus needing to stop.
Any audible or felt "pop" or "snap" — raises concern for a complete ligament or tendon rupture.
Previous injury to the same structure, and whether it was fully rehabilitated.
Sport, position, and activity level, to inform return-to-play planning.

Physical examination

Inspection for swelling, bruising, deformity, and any open wound.
Palpation for point bone tenderness at fracture-specific landmarks (see the Ottawa Ankle/Knee Rules below) and for the specific ligament, muscle, or tendon suspected to be injured.
Active and passive range of motion, and pain with resisted movement of the involved muscle-tendon unit.
Joint stability/stress testing specific to the suspected ligament (e.g., anterior drawer and talar tilt for a lateral ankle sprain).
Neurovascular examination distal to the injury — pulses, sensation, and motor function.
Assessment of weight-bearing ability, both immediately after the injury (by history) and at the time of examination.

When imaging is not needed

Most Grade I and many Grade II soft-tissue injuries do not require imaging. The Ottawa Ankle and Knee Rules are validated clinical decision rules that identify which patients with an acute ankle or knee injury need radiography to rule out a fracture, and which do not — applying them appropriately reduces unnecessary radiography without missing a clinically important fracture.^[3]^[4]

Rule	Obtain radiography if ANY of the following is present
Ottawa Ankle Rules (ankle series)	Pain in the malleolar zone, plus any of: bone tenderness along the distal 6 cm of the posterior edge or tip of the lateral malleolus; bone tenderness along the distal 6 cm of the posterior edge or tip of the medial malleolus; inability to bear weight both immediately after the injury and for 4 steps at the time of examination.
Ottawa Foot Rules (foot series)	Pain in the midfoot zone, plus any of: bone tenderness at the base of the 5th metatarsal; bone tenderness at the navicular bone; inability to bear weight both immediately after the injury and for 4 steps at the time of examination.
Ottawa Knee Rule	Age 55 years or older; isolated tenderness of the patella with no other bone tenderness; tenderness at the head of the fibula; inability to flex the knee to 90 degrees; inability to bear weight both immediately after the injury and for 4 steps at the time of examination, regardless of limping.

When none of the applicable criteria are present, the rule reliably excludes a clinically important fracture and radiography can safely be omitted — proceed directly to non-pharmacologic and pharmacologic management.

Treatment Targets

Reduce acute symptoms — pain, swelling, and inflammation.
Reduce the risk of recurrence by correcting contributing factors (malalignment, muscle weakness, biomechanical or training errors).
Restore weight-bearing capacity, flexibility, range of motion, strength, and proprioception to the pre-injury baseline.
Enable the athlete to return to all pre-injury activities comfortably, safely, and fully.

Choose Initial Treatment

Direct treatment rule

All grades, from the first assessment start Protection, Optimal Loading, Ice, Compression, and Elevation (POLICE) rather than the older RICE approach — the key evidence-based update is that early, protected loading of the injured tissue speeds recovery, while prolonged strict rest delays it; only the initial protection phase should resemble rest, and even that should be brief.^[1]^[5]

1st-line analgesia, most patients acetaminophen and/or an oral NSAID at the lowest effective dose for the shortest duration needed — see Acute Pain for full general dosing detail; for most acute sprains, strains, and contusions a short course of about 7 to 10 days is sufficient.

Topical NSAID, especially for a localized single-joint or single-limb injury, or in an older adult or a patient with GI/cardiovascular/renal NSAID risk is a real 1st-line option, not a fallback — it provides pain relief comparable to an oral NSAID with substantially lower systemic drug exposure, and is specifically named as a preferred initial therapy for acute musculoskeletal injury in current clinical guidance.^[6]^[7]

NSAID timing and tissue healing: NSAIDs give clear, well-established symptomatic and functional benefit in acute soft-tissue injury. The evidence on tissue healing itself is more nuanced — some animal and early-phase human data suggest that very early or prolonged NSAID use may theoretically blunt some aspects of the inflammatory phase of tendon and ligament repair, while other clinical data, including after tendon surgery, have not shown a meaningful difference in healing outcomes with short-course use. In practice, this supports using the lowest effective NSAID dose for the shortest duration that controls symptoms, rather than either avoiding NSAIDs altogether or continuing them for a prolonged, open-ended course.^[8]

Do not use an opioid as routine therapy for an acute sports-related soft-tissue injury — current guidance specifically recommends against opioids, including tramadol, for this indication given their marginal incremental analgesic benefit over acetaminophen/NSAID therapy and their real risks (sedation, dependence, diversion). Reserve a short course of a weak-opioid combination product for a genuinely severe injury or true intolerance of 1st-line agents only.^[7]

Non-Pharmacologic Treatment

POLICE protocol

Protection — protect the injured structure from further injury in the first 24 to 48 hours (e.g., a brace, tape, crutches, or a sling), without resorting to prolonged immobilization.
Optimal Loading — begin weight-bearing and gentle movement as soon as pain and stability allow, progressing gradually; this is the key departure from the older RICE approach and the single most important non-pharmacologic instruction in this chapter — mobilizing early, within the limits of pain, promotes healing and prevents the deconditioning, stiffness, and loss of proprioception that prolonged rest causes.^[1]^[5]
Ice — apply an ice pack wrapped in a damp, thin cloth to the injured area for 15 to 20 minutes at a time, at least 4 times daily for the first 48 hours (or longer if swelling continues); never apply ice directly to the skin.
Compression — an elastic bandage or compression wrap over the swollen area, particularly useful for an ankle sprain; counsel the patient to check for numbness, tingling, or increasing pain distal to the wrap, which signals it is too tight.
Elevation — elevate the injured limb above the level of the heart when possible, particularly in the first 48 hours.

Correcting contributing factors and structured rehabilitation

Address muscle imbalances, improper footwear, training errors, and inadequate protective equipment before the athlete resumes full activity.
Refer to physiotherapy for a structured rehabilitation program, progressing through range of motion, strength, endurance, and proprioception/balance training as tolerated.
Taping or bracing can support the injured joint during the return-to-activity phase.

Return to activity

Return to play is a graded process, not a single decision point: progress from pain-free activities of daily living, to pain-free range of motion, to strength and proprioception approaching the uninjured side, to sport-specific movement patterns, and only then to full unrestricted competition. Returning to full activity before these criteria are met is a common, preventable cause of reinjury.

Pharmacologic Treatment Options

Drug / intervention	Role	Dose / use	Important adverse effects	Teaching points
Acetaminophen Preferred	1st-line analgesic, all grades	325-650 mg PO Q4H PRN, max 4 g/day, generally for up to 7-10 days (see Acute Pain for full dosing)	Hepatotoxicity in overdose or supratherapeutic dosing	Preferred initial choice, especially in older adults or when an NSAID carries meaningful risk; can be combined with an NSAID for additive effect.
Ibuprofen Preferred	1st-line oral NSAID, all grades	200-400 mg PO Q6-8H PRN, max 1.2 g/day OTC, generally for up to 7-10 days (see Acute Pain for full dosing)	GI upset; avoid in renal failure, active peptic ulcer disease, heart failure, ASA-sensitive asthma	Use the lowest effective dose for the shortest duration; take with food to reduce GI upset.
Diclofenac diethylamine gel Preferred	1st-line topical NSAID for a localized injury, or when systemic NSAID exposure is a concern	Apply to the affected area twice daily (morning and evening), max 4 g/day across all treated areas, for up to 7 days	Local application-site irritation, rash; systemic NSAID effects are possible but rare given low absorption	Substantially lower systemic drug exposure than an oral NSAID — a genuine 1st-line option, not just a fallback for patients who cannot take an oral NSAID.
Naproxen Alternative	Longer-acting oral NSAID alternative	250-500 mg PO BID PRN, generally for up to 7-10 days (see Acute Pain for full dosing)	GI upset; avoid in renal failure, active peptic ulcer disease, heart failure, ASA-sensitive asthma	Longer duration of action allows less frequent dosing than ibuprofen.
Diclofenac potassium Alternative	Fast-onset oral NSAID specifically authorized for short-term sprain/strain treatment	50 mg PO Q6-8H PRN, max 100 mg/day, for up to 1 week	GI upset; avoid in renal failure, active peptic ulcer disease, heart failure, ASA-sensitive asthma	Health Canada-authorized specifically for short-term (up to 1 week) treatment of sprains and other acute soft-tissue injuries.
Ibuprofen / methocarbamol Alternative	Adjunct when muscle spasm is a prominent feature of a strain (e.g., a back or neck strain)	1-2 caplets PO Q4-6H PRN, max 6 caplets/day (1200 mg ibuprofen / 3000 mg methocarbamol), for up to 5 days	Drowsiness/sedation in addition to typical NSAID adverse effects; avoid alcohol	Useful specifically when spasm is prominent; not proven to speed healing beyond an NSAID alone.
Acetaminophen / codeine Special situation	Short-term adjunct for severe pain, or genuine intolerance of 1st-line agents	Per product labelling, generally limited to a maximum of 7 days for acute pain (see Acute Pain for full dosing)	Sedation, constipation, nausea; dependence/misuse risk with repeated use	Not routine therapy — reserve for a genuinely severe injury or intolerance of acetaminophen/NSAID therapy; do not default to this for typical sports-injury pain.
Acetaminophen / tramadol Special situation	Short-term adjunct for severe pain, or genuine intolerance of 1st-line agents	Per product labelling, generally limited to a maximum of 7 days for acute pain (see Acute Pain for full dosing)	Sedation, nausea more common than with other opioids; dependence/misuse risk with repeated use	Same special-situation restriction as acetaminophen/codeine — not routine therapy for typical sports-injury pain.

Evidence basis: topical NSAID preference and the recommendation against routine opioid use for acute musculoskeletal injury both reflect current systematic-review and clinical-guideline evidence.^[6]^[7]

Special Populations

Pregnancy

The same treatment principles apply to pregnant and non-pregnant athletes, with a few exceptions. A clinical evaluation is recommended before continuing or initiating an exercise program, and participation in sports with a high risk of contact, falling, or abdominal trauma, along with prolonged supine positioning (particularly beyond the first trimester), should generally be avoided. For analgesia, acetaminophen is preferred. NSAIDs can be used, but must be avoided in the third trimester because of the risk of premature closure of the fetal ductus arteriosus, and used cautiously — lowest effective dose, shortest duration — from approximately 20 weeks' gestation onward given the risk of fetal oligohydramnios from reduced fetal kidney perfusion; ultrasound monitoring of amniotic fluid should be considered if NSAID use extends beyond 48 hours, and the NSAID should be discontinued if oligohydramnios is detected.^[9]

Breastfeeding

Acetaminophen and NSAIDs (outside the pregnancy-specific restrictions above) can both be used safely while breastfeeding. Moderate exercise during breastfeeding does not affect the quantity or composition of breast milk.

Pediatric and skeletally immature athletes

Consider a growth-plate (physeal) injury in any skeletally immature athlete with point tenderness near a growth plate, even after a seemingly minor mechanism, and image/refer accordingly rather than assuming a simple sprain. Avoid ASA in children and adolescents with a viral illness or fever, given the risk of Reye syndrome; acetaminophen and ibuprofen are the preferred analgesics, dosed by weight (see Acute Pain for full pediatric dosing).

Older adults

Acetaminophen or a topical NSAID should be considered first for initial and ongoing treatment of sports- and activity-related musculoskeletal pain in older adults, since this group is more likely to experience an oral NSAID adverse drug reaction (dyspepsia, GI bleeding, renal impairment, blood pressure elevation) — see Osteoarthritis for detailed NSAID risk-management guidance in this population.

Renal or hepatic impairment

Avoid oral NSAIDs in significant renal impairment; a topical NSAID is a reasonable alternative given its much lower systemic exposure, though caution is still appropriate with extensive or prolonged use. Adjust or avoid acetaminophen in significant hepatic impairment per standard dosing caution.

Monitoring & Follow-Up

Reassess pain, swelling, and function at intervals matched to the injury grade — days for a Grade I injury, 1 to 2 weeks for a Grade II injury. Confirm the patient is progressing through optimal loading rather than remaining at strict rest, and that analgesic use is trending down as symptoms improve rather than being continued indefinitely. For a topical or oral NSAID used beyond its labelled short-term duration, or for pain that has not improved (or has worsened) within about 7 days, reassess the diagnosis before simply continuing or escalating the same therapy. For a Grade III injury managed conservatively, reassess for orthopedic referral if there is no meaningful improvement after 8 to 12 weeks, or if there is recurrent pain or instability. Before clearing an athlete for full return to play, confirm pain-free range of motion, strength approaching the uninjured side, and restored proprioception/balance — not simply the absence of rest-pain.

Treatment Failure / Next Step

Reassess the diagnosis — confirm a fracture, complete rupture, or growth-plate injury was not missed, particularly if pain and swelling are not following the expected trajectory for the assigned grade; obtain imaging if this has not already been done.
Confirm the patient has actually been following optimal loading, rather than remaining at strict rest or returning to full activity too soon — both errors delay recovery.
Confirm the analgesic regimen is adequate — appropriate agent, dose, and duration; consider adding an NSAID to acetaminophen, or trialling a topical NSAID if not already used, before escalating to an opioid.
Refer to physiotherapy for a structured rehabilitation program if this has not already happened, particularly for persistent symptoms beyond the expected recovery window for the injury grade.
For persistent symptoms despite adequate conservative therapy — especially a higher-grade injury not improving after 8 to 12 weeks, or recurrent instability — refer to a sports-medicine or orthopedic specialist; further options at that level of care may include an imaging-guided corticosteroid or platelet-rich plasma injection, or surgical evaluation, depending on the structure involved, and are beyond first-contact pharmacologic management.
Do not add an opioid as the default next step for inadequate pain control — reassess the diagnosis and optimize non-opioid therapy first, given the marginal incremental benefit opioids provide in this setting.

Common Errors to Avoid

Prescribing or reinforcing prolonged strict rest or immobilization instead of early, protected optimal loading — this is the single most common outdated practice pattern, and it delays recovery.
Continuing to use RICE terminology and practice without incorporating optimal loading — the rest component has specifically been updated, not simply relabelled.
Defaulting to an opioid, including tramadol, for routine sports-injury pain when acetaminophen and/or an NSAID (oral or topical) would be appropriate 1st-line therapy.
Overlooking topical NSAID therapy as a genuine 1st-line option, particularly in older adults or patients with GI, cardiovascular, or renal NSAID risk.
Assuming "it's just a sprain" without applying the Ottawa Ankle/Knee Rule criteria (or equivalent point-bone-tenderness/weight-bearing assessment) when they apply, and missing a fracture.
Continuing an oral NSAID at a fixed dose for many weeks for what should be a short, symptom-driven course.
Missing early signs of compartment syndrome or neurovascular compromise because they were attributed to "just" swelling from a sprain or strain.
Giving ASA to a child or adolescent athlete with a viral illness or fever.
Clearing an athlete for full return to play based on pain relief alone, without confirming restored strength, range of motion, and proprioception.

Clinical Decision Algorithm

Initial assessment of an acute soft-tissue sports injury

Acute soft-tissue injury suspected after sports/activity-related trauma (sprain, strain, or contusion)

Assess ability to bear weight, screen for point bone tenderness (Ottawa Ankle/Knee Rule criteria), and screen for red flags: deformity, neurovascular compromise, compartment syndrome, open wound, suspected physeal injury

Any red flag present

Refer emergently / obtain imaging before starting routine treatment

No red flags

Proceed to grading and initial management

Management by injury grade

Grade the injury (I-III) on exam: laxity/instability, weight-bearing ability, swelling

Grade I — mild

POLICE protocol; acetaminophen and/or NSAID (oral or topical) PRN; early return to activity as tolerated, typically within about 2 weeks

Grade II — moderate

POLICE protocol; short course of an oral or topical NSAID +/- acetaminophen; brace/tape support; physiotherapy referral for structured rehabilitation; graded return to activity over roughly 2-6 weeks

Grade III — severe

POLICE protocol; analgesia; bracing/immobilization as directed; refer to sports medicine/orthopedics up front to assess the need for surgical repair; physiotherapy; return to activity over roughly 6-12 weeks or longer

Analgesic selection

Pharmacologic treatment needed for pain

Assess patient factors: age, GI/cardiovascular/renal NSAID risk, and whether the injury is localized (single joint/limb) or diffuse

Localized injury, or older adult / GI-CV-renal risk

Start a topical NSAID (e.g., diclofenac diethylamine gel) as 1st-line

Diffuse injury, or topical NSAID impractical

Start acetaminophen and/or an oral NSAID at the lowest effective dose (see Acute Pain for general dosing)

Reassess if pain is not improving within about 7 days — do not simply continue the same regimen indefinitely

Reserve an opioid for a genuinely severe injury or true intolerance of 1st-line agents only — not routine therapy

Drug Tables

How to use this table: Doses are adult doses and require patient-specific confirmation, including renal/hepatic adjustment. Select any drug name to open its complete Pharmasist Drug Database page. General oral acetaminophen/NSAID/opioid dosing follows the same principles as Acute Pain; the doses below reflect sports-injury-specific practical guidance and duration.

Oral analgesics and NSAIDs

Drug	Dosage	Adverse effects	Comments
Acetaminophen	325-650 mg PO Q4H PRN, max 4 g/day.	Hepatotoxicity in overdose or supratherapeutic dosing.	1st-line analgesic for all grades; fewer adverse effects than an oral NSAID. Preferred initial agent in older adults or when an NSAID carries meaningful risk.
Ibuprofen	200-400 mg PO Q6-8H PRN, max 1.2 g/day (OTC); higher doses under medical direction.	GI upset; avoid in renal failure, active peptic ulcer disease, heart failure, ASA-sensitive asthma.	1st-line oral NSAID. Take with food. Limit to about 7-10 days for a typical acute sprain, strain, or contusion.
Naproxen	250-500 mg PO BID PRN, max 1000-1250 mg/day.	GI upset; avoid in renal failure, active peptic ulcer disease, heart failure, ASA-sensitive asthma.	Longer duration of action allows less frequent dosing than ibuprofen.
Diclofenac potassium	50 mg PO Q6-8H PRN, max 100 mg/day, for up to 1 week.	GI upset; avoid in renal failure, active peptic ulcer disease, heart failure, ASA-sensitive asthma.	Health Canada-authorized specifically for short-term (up to 1 week) treatment of sprains and other acute soft-tissue injuries; a faster-dissolving formulation than a standard diclofenac tablet.
Ketoprofen	25-50 mg PO 3-4 times daily, max 300 mg/day, typically for 3-7 days for acute pain.	GI upset; avoid in renal failure, active peptic ulcer disease, heart failure, ASA-sensitive asthma.	Take capsules with meals; take enteric-coated or sustained-release tablets away from meals. Reduce the initial dose by one-half to one-third in older adults or renal impairment.

Topical NSAID

Provides pain relief comparable to an oral NSAID for a localized injury, with substantially lower systemic drug exposure than an equivalent oral NSAID dose — a genuine 1st-line option, not only a fallback for patients who cannot take an oral NSAID.^[6]

Drug	Dosage	Adverse effects	Comments
Diclofenac diethylamine gel	Apply to the affected area twice daily (morning and evening); total daily amount across all treated areas should not exceed the equivalent of 4 g. Limit to 7 days for a muscle or joint injury unless directed otherwise.	Local application-site irritation, rash, pruritus, dermatitis; systemic NSAID effects are possible but rare given low absorption.	Apply only to intact skin; avoid the eyes, mucous membranes, and open wounds. Not authorized by Health Canada for use under 18 or over 65 years of age given a lack of submitted data for these age groups; older adults are nonetheless often reasonable candidates given the alternative is a riskier oral NSAID.

Muscle-relaxant combination

An option specifically when muscle spasm is a prominent component of a strain (e.g., a low back or neck strain), as an adjunct to — not a replacement for — POLICE and 1st-line analgesia.

Drug	Dosage	Adverse effects	Comments
Ibuprofen / methocarbamol	1-2 caplets PO Q4-6H PRN, max 6 caplets/day (1200 mg ibuprofen / 3000 mg methocarbamol). Limit to 5 days unless directed otherwise.	Drowsiness/sedation (methocarbamol) in addition to typical NSAID adverse effects; harmless brown, black, blue, or green urine discolouration can occur.	Not authorized under 12 years of age and not generally recommended over 65. Do not combine with a separate NSAID or with additional acetaminophen without pharmacist guidance.
Methocarbamol	Initial: up to 1500 mg PO four times daily for the first 48-72 hours. Maintenance: approximately 750-1500 mg PO 3-4 times daily, tapering as symptoms improve.	Drowsiness, dizziness; avoid alcohol and other CNS depressants.	Adjunct to rest and physical therapy for muscle spasm associated with a strain; not a substitute for an analgesic. Short-term use only — reassess if symptoms persist beyond 2-3 weeks.

Weak-opioid combination (special situation only)

Not routine therapy for a sports-related soft-tissue injury — reserve for a genuinely severe injury or true intolerance of 1st-line agents, per current opioid-stewardship guidance for acute musculoskeletal pain. See Acute Pain for the complete opioid analgesic ladder and dosing.^[7]

Drug	Dosage	Adverse effects	Comments
Acetaminophen / codeine	1-2 tablets PO Q6H PRN initially; generally limit to a maximum of 7 days for acute pain.	Sedation, constipation, nausea; dependence/misuse risk with repeated use.	Special-situation use only — a genuinely severe injury or intolerance of 1st-line agents, e.g., a significant tear pending specialist assessment.
Acetaminophen / tramadol	1-2 tablets PO Q4-6H PRN, max 8 tablets/day; use the lowest effective dose for the shortest duration.	Sedation, nausea more common than with other opioids; CYP2D6 ultra-rapid metabolizers are at risk of respiratory depression.	Same special-situation restriction as acetaminophen/codeine above.

References

PRICE needs updating, should we call the POLICE? — British Journal of Sports Medicine (Bleakley CM, Glasgow P, MacAuley DC). Br J Sports Med 2012;46(4):220-221
British athletics muscle injury classification: a new grading system — British Journal of Sports Medicine (Pollock N, James SL, Lee JC, Chakraverty R). Br J Sports Med 2014;48(18):1347-1351
Decision rules for the use of radiography in acute ankle injuries: refinement and prospective validation — JAMA (Stiell IG, Greenberg GH, McKnight RD, et al.). JAMA 1993;269(9):1127-1132
Prospective validation of a decision rule for the use of radiography in acute knee injuries — JAMA (Stiell IG, Greenberg GH, Wells GA, et al.). JAMA 1996;275(8):611-615
Soft-tissue injuries simply need PEACE and LOVE — British Journal of Sports Medicine (Dubois B, Esculier JF). Br J Sports Med 2020;54(2):72-73
Topical NSAIDs for acute musculoskeletal pain in adults — Cochrane Database of Systematic Reviews (Derry S, Moore RA, Gaskell H, McIntyre M, Wiffen PJ). Cochrane Database Syst Rev 2015;(6):CD007402
Nonpharmacologic and Pharmacologic Management of Acute Pain From Non-Low Back, Musculoskeletal Injuries in Adults: A Clinical Guideline From the American College of Physicians and American Academy of Family Physicians — Annals of Internal Medicine (Qaseem A, McLean RM, O'Gurek D, et al.). Ann Intern Med 2020;173(9):739-748
Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) and Their Effect on Musculoskeletal Soft-Tissue Healing: A Scoping Review — JBJS Reviews (Ghosh N, Kolade OO, Shontz E, et al.). JBJS Rev 2019;7(12):e4
Labelling update regarding the use of non-steroidal anti-inflammatory drugs (NSAIDs) beyond 20 weeks of pregnancy and risk of kidney damage to unborn babies — Health Canada. Safety alert, finalized June 2021

Professional reference only. Apply clinical judgment and verify patient-specific decisions against current authoritative guidance and product information.