“注意事項”也是藥品說明書中的重要內容之一。為了安全用藥，廠商在本項中特別強調應注意的事項，其中主要包括：正確的劑量和用法，超過劑量時的應急措施，用藥對象，可能出現的較嚴重的副作用及治療方案，藥物的配伍，藥液的配制、使用及保管等、方面的注意事項。現就本項內容詳細介紹如下：
1. 本項常用的英語表示法：
Precaution（s) 注意事項 Special note（caution, precaution)特別注意
Caution(s) 注意事項 N.B. 注意
Noto 注意 Warning(s) 警告
有時也用：
Important 重要事項 Important for the patients 患者須知
2. 本項中常見的檢查項目：
blood count 血細胞汁數 Kidney (renal) function 腎功能
blood picture（hemogram) 血象 Liver（hepatic)function 肝功
blood level 血濃度 serum concentration 血清濃度
blood pressure 血壓 serum creatinine test 血清肌酸酐檢驗
clotting time 凝血時間 urine routine（examination) 尿常規
creatinine clearance 肌酸酐清除率
3. 本項的特點是內容長短不一，有難有易；詞匯量大，涉及面廣，既有普通詞匯，也有大量的專業詞匯及編寫詞。許多詞匯、結構和句型可在藥理作用、適應癥、禁忌癥、劑量和用法、副作用，貯藏等項中見到。從英語結構上分析，句型變化較多，長句、難句也屢屢出現，是比較難讀的一個項目。
例1 Warnings and precautions: Ciprofloxacin should be used with caution in epileptics and patients with a history of CNS disorders and only if the benefits of treatment are considered to outweight the risk of possible CNS side-effects.
警告和注意事項：癲癇病人及有中樞神經系統病史的患者慎用環丙沙星，僅當認為療效超過可能產生的中樞神經系統副作用的危險時才可使用。
例2 Ciprofloxacin could result in impainnent of the patients ability to drive or operate machinary, particularly in conjunction with alcohol.
環丙沙星能損害人們駕駛汽車或操縱機器的能力，尤其是在飲酒之后。
例3 Warnings: Vepeside should be administered under the supervision of a qualified physicain experienced in the use of cancer chemotherapeutic agents.
警告：泛必治應該在使用治療癌癥的化療制劑方面有經驗、有資格的醫生的監護下使用。
例4 The most serious risk associated with anticoagulant therapy with sodium warfarin are hemorrhage in any tissue or organ and less frequently, necrosis and/ or gangrene of skin and other tissues. The risk of hermorrhage is related to level of intensity and the duration of anticoagulant therapy.
用華注林鈉進行抗凝治療產生的最嚴重的危險就是組織或器官出血，以及不大常出現的皮膚和其他組織的壞死和（或)壞疽。出血的危險與抗凝治療的藥物濃度（水平)及療程長短有關。
例5 The occurrence of a platelet count below 50,000/mm3 or an absolute neutrophil count below 500/mm3 is an indication to withhold further therapy until the blood counts have sufficiently recovered.
血小板數低于s0，000／mm3 或絕對中性白細胞數低于500／mm3 ，表明不能繼續使用本品治療，待白細胞計教充分恢復后才能繼續用藥。醫學全在.線提供
例6 Warfarin therapy should be discontinued when warfarin is suspected to be the cause of developing necrosis and heparin therapy may be considered for anticoagulation.
當懷疑華法林治療引起壞死時，則須停止治療，并且考慮使用肝素治療。
例7 Dosage should be controlled by periodic determinations of prothrombin time(PT) or other suitable coagulation tests.
必須定期檢查凝血酶原時間（PT)，或做其他相應的凝血試驗來控制劑量。
例8 Please note Cerebral convulsive disease is regarded as a relative contraindication for examinations in the subarachnoid space. If after careful consideration, these examinations are nevertheless performed, all equipment and medicines necessary to counter any convulsions may occur must be prepared ready for use beforehand.
請注意：腦驚厥被認為相對禁止進行蛛網膜下腔檢查，如經謹慎考慮后、仍要進行這些檢查時．必須事先備妥應付可能發生驚厥所需的所有設備與藥品。
例9 Caution must be exercised in the case of hypersensitivity to iodinated contrast media, latent hyperthyroidism and bland nodular goitre.
對碘造影劑過敏、隱匿性甲狀腺亢進和輕微甲狀腺腫的病例，應慎重。
例10 Caution Alcohol intake may enhance nitrate effects and occasionally induce hypotension with subsequent impairment of reactivity. During the first three months of pregnancy drugs should only be used on the express direction of the attendant physician. Isket spray should not be stored at temperatures above 25。C! Temperatures above 40 ℃ are to be be avoided, even for bried periods! Do not force canister open, even when empty!
注意：飲酒可增強硝酸鹽的作用、偶爾引起低血壓，繼而損害反應力。妊娠三個月時，只有在監護醫生明確指導下才可使用本品。異舒吉噴霧劑的貯存溫度不應超過25℃！避免超過40℃。即使短時間也不可！不要用力開罐，即使空罐時也不可用力開！勿使兒童接觸本品
例11 As with all new drugs， patients should be followed carefully so that any side-effects or unusual manifestations of drug idiosyncrasy may be detected. If any allergic reaction to Keflex occurs, the drug should be discontinued and the patient treated with the usual agents.
像使用所有新藥一樣，應細心地隨訪患者，以便觀察任何副作用或藥物特異反應。如果出現對頭抱菌素IV的過敏反應，應停藥，并用常規藥物治療患者。
例12 In patients with normal renal function, chronic hypercalcemia may be associated with an increase in serum creatinine. While this is usually reversible, It is important in such patients to pay careful attention to those factors which may lead to hypercalcemia.
對于腎功能正常的患者,慢性高鈣血癥可能與血清肌酸酐增多有關。這通常雖然是可逆的，然而對這樣的病人，密切注意可能導致血鈣過多的各種因素是很重要的。
例13 Precautions 一Avoid the concomitant use, in the absence of special monitoring laboratory of parameters, of anticoagulants or aspirin. 一Inform the attending physician in the event of bleeding or of the occurence of a hematoma.
注意事項：在無化驗室參考指標的專門監測情況下，避免與抗凝劑或阿司匹林合用。如發生出血或出現血腫，應通知主治醫生。
例14 Periodical examination of hepatic or renal function and blood picture is desirable since Kedacillin may increase SGOT. SGPT and BUN, and decrease erythrocyte and leucocyte.
磺芐青霉素鈉可使血清谷-草轉氨酶，血清谷-丙轉氨酶和血液尿素氮增高，使紅細胞和白細胞減少．所以最好要定期檢查肝、腎功能和血象。
例15 N.B.Transference from insuline to Glutril may be attempted in case of maturity-onset diabetes with obesity;dosage is based upon the result of the necessarily frequent metablic tests.