Don't take Benylin mucus cough & cold all-in-one relief if you're taking any of the following medicines, because the combination may increase your blood pressure:

This product should not be used by patients taking other sympathomimetics (such as decongestants, appetite suppressants and amphetamine-like psychostimulants) The speed of absorption of paracetamol may be increased by metoclopramide or domperidone; and absorption reduced by colestyramine. The anti-coagulant effect of warfarin and other coumarins may be enhanced by prolonged regular use of paracetamol with increased risk of bleeding; occasional doses have no significant effect. Alcohol may potentiate the hepatotoxicity of paracetamol.Breast-feeding:It is not known if dextromethorphan passes into breast milk. If you are a breast-feeding mother and are taking this medication, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding. Taking any other product for colds, flu or congestion as Covonia All-in-One contains a decongestant

Seniors:If you are a senior, talk to your doctor or pharmacist before taking this medication. What other drugs could interact with this medication? Contains paracetamol. Talk to a doctor at once if you take too much of this medicine, even if you feel well. This is because too much paracetamol can cause delayed, serious liver damage.The active ingredients per 20ml are: paracetamol 1000mg, phenylephrine hydrochloride 12.18mg, guaifenesin 200mg, cetylpyridinium chloride 3mg The anticoagulant effect of warfarin and other coumarins may be enhanced by prolonged regular daily use of paracetamol with increased risk of bleeding; occasional doses have no significant effect. Paracetamol should be used with care in patients with severe renal or hepatic impairment. The hazard of overdose is greater than those with non–cirrhotic alcoholic liver disease. This medicinal product contains 31 mg of sodium per dose. To be taken into consideration by patients on a controlled sodium diet.

This medicine contains 2880mg alcohol (ethanol) in each 20ml dose which is equivalent to 18vol%. The amount in 20ml of this medicine is equivalent to 72ml of beer or 29ml of wine Phenylephrine should be used with care in patients with hyperthyroidism, cardiovascular disease, diabetes mellitus, closed angle glaucoma and hypertension. Talk to a doctor at once if you or your child take too much of this medicine even if you feel well. This is because too much paracetamol can cause delayed, serious liver damage.Undesirable effects are rare with normal doses of phenylephrine, however it can cause the adverse effects typical of sympathomimetics including: hypertension, palpitations (tachycardia), headache, dizziness, vomiting, diarrhoea and insomnia. Urinary retention has also been reported – this is more likely to occur in men with an enlarged prostate (frequency not known). Many medications can cause side effects.A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.